Why aren't men more afraid of the risk of pregnancy in casual sex?

I came across a post in this subreddit asking women why they didn't do as much of casual sex as men.

One of the main reason was the risk of pregnancy.

Thinking about that I am surprised that in states where abortion is legal men aren't more afraid of that than women since women can abort and never thinking about that again where men will have to lose a quarter of their income on for 20 years