I’ve never been in a context where that’s even acceptable. None of my friends pick up women (or are successful) and the only person I know in a long term relationship met his fiancé in middle school.
I dont think it’s Puritanism but it is being risk averse. I know how hard it is for women and how many creeps they do have to deal with so I’d rather not even create the possibility of coming off as one. Add to this the tinderification of the hiring market (see Google’s top 1% of intelligence) and dating scene have put the bottom 80-90% in a bit of a bind because in many large metro areas there are more straight men than women and women are not culturally expected to make the first move. Couple that with increased expectations and lower social cohesion and it becomes...well, expected.
Source - non-homeschooled straight 23 year old, never once asked a girl out.