One concern I might have is that I’ve heard (and Wikipedia confirms, though with caveats[1]) that ejaculation can help avoid prostate cancer.

“These [studies] suggest that frequent ejaculation after puberty offers some reduction of the risk of prostate cancer.”

I think we need more/bigger studies to get a handle on how big the effect is though.

[1] NSFW warning - this is a Wikipedia article with a picture of a guy ejaculating riiiiight at the top: https://en.m.wikipedia.org/wiki/Ejaculation#Health_issues