Paul va se faire couper les cheveux chez la coiffeuse avant le dîner.

Because se faire + infinitive is a very common French pattern meaning to have something done to oneself.

So:

• Paul va se faire couper les cheveux = Paul is going to have his hair cut
• literally: Paul is going to make/get himself cut the hair

This is different from:

• Paul va couper les cheveux = Paul is going to cut hair (someone else’s, or hair in general)
• Paul va se couper les cheveux = Paul is going to cut his own hair himself

So se faire couper les cheveux specifically suggests that someone else will do the cutting for him.

It usually means to get / to have something done.

In this sentence:

• se faire couper les cheveux = to get one’s hair cut

Other common examples:

• se faire laver la voiture = to get one’s car washed
• se faire examiner = to get examined
• se faire masser = to get a massage / to get massaged

The reflexive pronoun se refers back to the subject, so Paul is the person receiving the action.

Because French object and reflexive pronouns usually go before the infinitive they belong to.

Here, se belongs with faire, not with va:

• Paul va se faire couper les cheveux

This follows the normal pattern with aller + infinitive:

• Je vais me laver
• Tu vas te reposer
• Il va se faire couper les cheveux

So even though va is the conjugated verb, the pronoun stays in front of the infinitive faire.

French often uses the definite article with body parts, especially when the person is already clear from the sentence.

So French says:

• se faire couper les cheveux
• literally: to have the hair cut

English prefers:

• to have one’s hair cut
• to have his hair cut

Because Paul and se already show whose hair it is, French does not usually need ses here.

This is very common with body parts:

• Je me lave les mains = I wash my hands
• Elle s’est cassé la jambe = She broke her leg

Because after faire, French normally uses a bare infinitive:

• faire couper
• faire réparer
• faire nettoyer

So:

• se faire couper les cheveux

means to have the hair cut.

You do not use a past participle after faire in this structure.

Va is the present tense of aller, and aller + infinitive forms the near future in French.

So:

• Paul va se faire couper les cheveux

means:

• Paul is going to get his hair cut

It often suggests something planned or expected in the near future.

Compare:

• Paul se fera couper les cheveux = future tense, a bit more formal/written
• Paul va se faire couper les cheveux = very natural in everyday speech

Chez often means at the home/place/business of a person.

So:

• chez la coiffeuse = at the hairdresser’s / at the hairdresser’s place

This is a very natural French way to refer to someone’s shop or workplace.

Compare:

• chez le médecin = at the doctor’s
• chez le boulanger = at the baker’s
• chez le dentiste = at the dentist’s

So chez la coiffeuse does not necessarily mean her house; it usually means the place where she works.

Yes. Coiffeuse is the feminine form, so it tells you the hairdresser is female.

• un coiffeur = a male hairdresser
• une coiffeuse = a female hairdresser

If the hairdresser were male, the sentence would be:

• Paul va se faire couper les cheveux chez le coiffeur

Yes, absolutely.

Both are natural, but they focus slightly differently:

• chez la coiffeuse = at the hairdresser’s
• au salon de coiffure = at the hair salon

The first highlights the person/professional; the second highlights the place/business.

It means before dinner.

• avant = before
• le dîner = dinner / the dinner meal

So it tells you when Paul is going to get his hair cut.

French often uses the article with meals:

• avant le dîner
• après le déjeuner
• pendant le repas

Not in this sentence.

Here it is clearly the noun le dîner because of the article le:

• avant le dîner = before dinner

If it were the verb, the structure would be different, for example:

• avant de dîner = before dining / before having dinner

That is an important contrast:

• avant le dîner = before dinner
• avant de dîner = before eating dinner

This is a very important difference:

• Paul va se faire couper les cheveux = Paul is going to have his hair cut by someone else
• Paul va se couper les cheveux = Paul is going to cut his own hair himself

So the version with se faire + infinitive usually implies a service performed by another person.

In a way, yes, but not grammatically in the same way as English passive.

English often says:

• Paul is going to have his hair cut

French expresses that idea with:

• Paul va se faire couper les cheveux

It gives the sense that Paul is undergoing the action rather than doing the cutting himself. So it is not the standard French passive with être + past participle, but it has a similar meaning from the point of view of Paul.

Yes, very often. It is extremely useful in everyday French.

Examples:

• Elle va se faire refaire les ongles. = She is going to get her nails done.
• Je vais me faire soigner. = I’m going to get treated.
• Nous allons nous faire livrer un repas. = We’re going to have a meal delivered.
• Il s’est fait réparer son ordinateur. = He got his computer repaired.

So learning se faire + infinitive is very helpful because it appears in many practical situations.