Honestly, some guys are threatened by girls who have more experience, so put them down in order to `feel better`.
And as for the argument that it's `easier` for women, well, maybe, but I dont think `convince` someone to sleep with you is the right term. It makes it sound like no women want to have sex ever and men want to have sex all the time.
Which is just NOT true.
Yes we can all have a joke along the lines of `Oh haha, those horny men are always after it`, but personally I've known many women who have much higher sex drives than their male partners, and I sometimes have that same problem.
Also, that would give way to the line of reasoning `I got these men to sleep with me but it was REALLY DIFFICULT so I'm not a slut!`.
Honestly the idea that women are supposed to have as few partners as possible and pretend not to enjoy sex in order to not be called a slut is just stupid. It stops a lot of women from more experiences, and as for guys, judging a girl for having sex is only going to make a lot of girls want to have less sex which is kinda.. shooting yourself in the foot, isnt it?