RPW preaches commitment before sex, but I have a very difficult time achieving or understanding this.

I date and date - have good dates, fun dates, good conversation, talk about the future, enjoy our time together - and then when I say I want to keep dating more before having sex, they ghost.

I would say on average they ghost after 3-4 weeks of dating without sex. When I try to bring up commitment before sex, they ghost.

Am I missing something? How can I change strategies? Am I unconsciously friend zoning men when I wait too long for sex?