Why are boy groups more likely to have singers who sing and rap compared to girl groups it's either one or the other?

Like with girl groups like:

Red Velvet

BLACKPINK

TWICE

ITZY

etc.

they all have the singers who sing and the ones who rap. But with boy groups the members can do both. For example Stray Kids has main vocalists have rap moments.

I think the only girl group who has singers who also rap is Everglow's Mia. Yeah Jennie raps and sings but Jennie hasn't had a full blown rap verse since her solo rap in D4