Post-collegiate virgins will never call up a backpage hooker or fuck a fat chick because their problems are bigger than their virginity. Whatever their issue is is what is holding them back from losing their virginity, not the virginity itself. Probably some powerful mix of depression, anxiety, and spending their crucial socializing moments (their teen and pre-teen years) in front a computer or a TV. Basically they're social distinguished mentally-challenged fellows and probably won't get over their mental block until they get some therapy. Also they probably know every porn star by name, cataloged their videos in chronological progression, and can identify which BBC drilled them. They're so used to jacking off to porn that they don't need real women, so they don't put forth the effort to approach any women. Dr. Drew likes to talk about this every now and then.
Whatever it is, they should fix it fast. I can't imagine a woman is going to want to play sexual catch up with a 28 year old whose sex skills are the same as a 13 year old's. Maybe they could rent out a backpage hooker for a weekend and bang her nonstop to start getting practiced.