No, I won't heap all the blame on men, but let's be factual.
In secondary school, one way or another, many of us guys got girls to like us for our charisma, book intelligence, sports talent, etc.
We could also meet girls and talk to them, and flirt at times too.

I don't believe that the same guys of 15, 16, 17, who engaged girls in romantic talks or got them to trip, can't get women again without spending money.
Yes, the girls became materialistic.
But yes, too, the guys either got lazy, or the shy, quiet ones then are those doing this

In the end, I blame things like Yahoo, which equally made women materialistic and made men materialise women.
Many boys I knew who got into yahoo didn't because of "Mama"; it was because a babe rubbished them for not having money.

"Make money, women will come", is a mantra used by guys who patronise hook-up, pay their babes monthly allowance, etc.
While the girls are materialistic, you make yourself a material.
Because you feel you're nothing without money. Because you feel your writing, artistic talents

are useless if you don't own a Benz, that's why you feel your appearance before a woman is worthless if you can't prove to her first, that you have money.
Yes, men are to be blamed for the hook-up culture, because men stopped being men, but needy kids who want validation.