That's probably true in this day and age. I don't think badgering a woman for sex is right, nor do I think it's right to withhold sex from a man for the purpose of inducing him to commit.
If a couple can't agree on when the relationship becomes sexual, they should probably end the relationship. Trying to force one to bend to the other's will is unfair, creates resentment, and probably indicates much deeper differences that will continually plague a continued relationship.
I believe in abstaining before marriage and respect women who do so. I also know our media culture is dead set against giving that message and ridicules those who commit to it.
I wouldn’t look at a women who refused sex before marriage as manipulating me into a commitment. I would look at it as her preconditions for finding a husband. If I can’t abide by that, shame on me. If a woman tried to pressure me into either sex or marriage before I was ready, shame on her.
Life’s a two-way street. Neither one ought to ever feel forced into sex or marriage. It should be a union mutually agreed upon or it will likely fail.