Variations of this claim include but are not limited to: If men ...

were more involved parents [just like women are], they would win custody more often;

married someone of their own socioeconomic status [just like women want to], they would get more equitable division of assets in divorce;

visited doctors more often [just like women do], they would have longer lifespans / fewer health issues;

put more effort into their attractiveness [just like women do], they would have less problems in dating.

I always see it as some variation of "Men are just stupid / reckless / toxic / unwilling to hear a genuinely useful advice" and the like, so basically as a variation on "Men Just Suck". But if these claims come from a place of genuine care and concern, what do you think are the reasons behind men's unwillingness to do this particular, often quite basic and intuitive thing?

Secondly, which of women's issues do you think stem from their unwillingness to just do things differently and in ways that seem intuitively obvious to men?

Since such claims come not only from women, but also often from certain men, I open this question for discussion to everyone.