Because men will find one way or another to throw a fit about how much control they don't have over the situaiton.
If they fukking too much for their own pleasure it's an issue.
If they fukk too soon it's an issue.
If they take too long to give up the p*ssy it's an issue.
I can go on with the conflicts of interest, bottom line is, leave it up men they're going to find themselves in a lose lose situation more often than not.
Information is power fam. You want random bytches to put a sticker on their shirt that tells you how many men they been with? Nobody owes you intel off the bat, that's something you offer when someone has proven they can be trusted.