It's said that a downside to C-section birth is that the child won't acquire beneficial bacteria from the vagina that will help ward off ailments. There's even something known as "vaginal seeding." What's not said is that perhaps adult men can too acquire such beneficial bacteria. If vagina has a positive effect on health on men, I think it should be considered health care and paid for by Medicaid.
In short, vagina has profoundly positive effects on men's health.
