Why are men so ignorant about how women feel about their sons?

I have a son and I am protective of him same as men are protective of their daughters. I also know many moms who are like me and few dads. The problem is many men try to ignore this or brush it off. Like when our sons are having sex, even if its inappropriate like with someone much older, men think we should mind our business and not get involved and let our sons have sex, without thinking of the consequences like pregnancy or mental well being.

I personally find this behavior insensitive and rude.

Why are men so ignorant about how women feel about their sons?
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