Her evlat ailesi için değerlidir.

No. In Turkish, her means every or each.

So:

• her evlat = every child / each child

It is just a coincidence that it looks like the English word her.

Because after her in Turkish, the noun normally stays singular.

So Turkish says:

• her evlat = every child
• her insan = every person
• her gün = every day

This is different from English, where learners sometimes expect a plural idea because the meaning is about all members of a group. In Turkish, her + singular noun is the normal pattern.

Both can refer to a child, but they are not exactly the same in tone.

• çocuk = the usual everyday word for child / kid
• evlat = son/daughter, offspring, child with a more emotional, family-centered, or sometimes slightly formal/literary tone

In this sentence, evlat fits well because the sentence is about a child in relation to their family. It highlights the family bond more strongly than çocuk often would.

Because ailesi means his/her family or their family.

Breakdown:

• aile = family
• ailesi = his/her family

That -si is a 3rd person possessive suffix. Turkish usually marks possession on the noun itself.

So here:

• her evlat ailesi için = for every child’s family / for his or her family

In smoother English, that is usually understood as for their family or to their family.

Because Turkish often leaves the possessor unstated when it is already clear from context.

So:

• onun ailesi = his/her family
• ailesi = his/her family

Both are possible, but ailesi is enough here because the owner is already understood from her evlat.

If you added onun, it could sound more explicit or contrastive, but it is not necessary.

için means for.

So:

• ailesi için = for his/her family

Turkish uses postpositions, which come after the noun phrase, where English usually uses prepositions, which come before.

Compare:

• English: for the family
• Turkish: aile için

So için is behaving normally here.

In this sentence, ailesi için can be understood as:

• for his/her family
• to his/her family

depending on how naturally you want to say it in English.

değerli means valuable, precious.

değerlidir is:

• değerli
  • -dir

The ending -dir is a form of the copula, roughly connected to is. In modern Turkish, especially in everyday speech, this ending is often omitted:

• Her evlat ailesi için değerli.
• Her evlat ailesi için değerlidir.

Both are grammatical.

The version with -dir sounds:

• more formal
• more definite
• more like a general truth or statement

So değerlidir is a bit more polished or textbook-like than plain değerli.

Yes, in a way.

Turkish often does not use a separate word like English is in simple present-tense sentences with nouns and adjectives.

So:

• değerli can already mean is valuable in context
• değerlidir makes that predication more explicit/formal

That is why you do not see a separate independent word for is.

The order in the sentence is the most neutral one:

• Her evlat = subject
• ailesi için = for his/her family
• değerlidir = is valuable

So the sentence structure is:

• Every child
  • for their family
    • is valuable

Turkish word order is somewhat flexible, but changing it can change the emphasis.

For example:

• Ailesi için her evlat değerlidir.

This still means basically the same thing, but it gives more emphasis to for the family.

The original sentence is a natural, neutral way to say it.

Yes. It is a general statement about children and families, not about one specific child.

That general meaning comes from several things working together:

• her = every
• singular generic noun evlat
• the formal statement-like ending -dir

So the sentence reads like a broad truth, similar to something you might see in an essay, speech, or moral statement.