[throwaway202351]

You may be interested in reading about the Voluntary Human Extinction Movement. [1].

[1] https://www.vhemt.org/

but also, yes, I totally agree with you that some of this "oh you're a late bloomer, you'll want to do it when your older" stuff comes off as condescending if you actually just don't want to own a house with 2.5 kids.