[rohit2412]

I'm sure they play a role, but I have read that even teenagers are having less sex.

I don't think teenagers are thinking about housing and childcare when not pursuing sex.

[staticman2]

>but I have read that even teenagers are having less sex.

This is a funny way to frame it. A lot of people are trying to stop teenagers from having sex. When I was a teenager the parents sponsored a "post prom" Carnival, I believe with the intent of having kids doing something with their dates after the prom that didn't involve having sex.

Some religious people work every day towards the goal of making sure a female teenager's life will be imperiled if she has a medical problem as a result of sex. And will tell her if she doesn't like it, she shouldn't have had sex.

Who is working in the other direction and trying to get teenagers to have sex?

[matwood]

I don't know about teenagers, but when I see stats like 20% of the men get 80% of the dates on dating apps it's obvious why people give up.

To your point, there are multiple reasons causing people to have less sex and less children.

[comte7092]

It may be the case that teenagers are having less sex, however I don’t think we should be too worried about a decrease in birth rates due to unplanned pregnancies.

What matters is planned pregnancies, and to that, housing and childcare absolutely factor into that decision.