Some people aren’t gonna be interested in sex at work. I would expect many women and non-binary people gonna pass. This means they’re unfairly compensated. While you can argue employer-provided or subsidized childcare is unfair too because people without children don’t benefit, I think there’s a consensus that productivity hit is too expensive for the company.

Other people have families, for them it’s even harder to solve in a good way. You can’t just pay them more money, they might find themselves in a position to choose between job and marriage, that’s not a good position to be.

Sex at work might be a great perk for single male employees, but I think issues caused for the rest of the people are worse, gonna affect bottom line in a negative way. Hiring is the worst of them, IMO.