According to ts statement, i dont really see the mature immature thing,
i oni see materialistic.
Things u say like gals wan big mansion or small house, gals pay for themself and gals choose financially stable guy has nth to do with maturity, that oni depends on individual.
Gals pay for ownself got nth wrong, u expect a gal born and do nth until he marry a rich guy then break both of her leg and enjoy life?
U truly never seen a gal chose financially unstable guy as husband/bf?
That can be serve as a requirement on this society, however it is not a must or law that everyone have to follow.