句子文法有没有錯? 請大家幫忙

socialize 有三個解釋
1. (intran. verb) – to spend time with other people in a friendly way
交際, 應酬
因為 intransitive verb, 因此無 passive voice

2. (tran. verb) usually passive – to train someone to behave in a way that is acceptable in the society.
使適合過社會生活﹐使合羣
Girls are socialized into appropriate ‘feminine’ behaviour.
Recent immigrants to Hong Kong are not fully socialized.

3. (tran. verb) – to organize something according to the principle of socialism

Men aren’t socialised to share their feelings, especially negative ones.
因為 passive, 根據字面解
男人未適應社會生活去分享他們自己的感受, 尤其是負面的 ~ 怪怪地

你的意思多是 ~
Men doesn’t socialize to share their feelings, especially negative ones.
男人不應酬去分享他們自己的感受, 尤其是負面的
意思是說男人應酬不是去分享他們自己的感受 …

兩個意思不同

不是任何 verb 加 +ed, 就變 adjective
walk (verb) – walked (past tense/ p.p.) 不可能做 adjective
許多 verb , 加 + ed, 變成 past participle, 可做 adjective

socialized 可做 adjective
As a socialized man, we need true riches to satisfy our physical and spiritual desires.
Many Americans disapprove of the socialized medicine of Canada and Europe
socialized medicine = 由政府提供,靠稅收支付的公費醫療

It means that the young children exposed to stress could develop a fear of learning.

exposed 是 past participle, 不是 adjective.
exposed to stress 是 past participial phrase, functions as an adjective phrase, 形容 the young children.

稍簡短句子可代替以下有 relative clause 句子
It means that the young children who are exposed to stress could develop a fear of learning.
( be + past participle 在這句是 passive voice)

另外例子:
Students who are taught phonics by their teachers can sound out words.
只將 who are 刪除
Students taught phonics by their teachers can sound out words.
Phonics = 讀音法

Frustrated 做 adjective
I met a frustrated artist. (在 noun前)
Her attitude made her boyfriend frustrated. (在 noun後)

Peter is frustrated.
Frustrated 可以是 adj. 或 p.p.
Peter is frustrated (by Joe). ~ 是 past participle
If Peter is in a state of frustration, frustrated 是 adjective.
You need contextual clues to help you decide whether frustrated is a past participle or an adjective.

socialize寫成ed在這句中不是變成adjective
而是變為are(n't) past-participle的被動動動詞 - 男人(沒有)被社會/社群化了...
一個字成為adjective(無論是+ed還是本身)都要有它形容的東西 - 例如human/primate is social beings.
由於social這個詞已經是adjective，所以除非很特殊的社群關係性描述才會用socialized "thing"。
socialize這個字在這裏意思是聯誼/社交，而不是社會化(認同化/共同化)那種意思。
你的第二句
Men doesn’t socialize to share their feelings, especially negative ones.
寫法和意思是正確的地道英語人會寫和明白的方式。

由於你句子要表達的內容是關於個人(男性)感受(負面)而不是社群性的(socalized)關係的問題，所以不會寫socalized.