Okay now what if I show you this image and tell you it's an actual conversation between me and my brother?

Baths are fucking awesome though.

The only 3 arguments I've ever heard otherwise are:

Baths are for girls and gays

Already a nonstarter if I don't care about fitting into your fragile idea of masculinity

You just can't get clean sitting in a tub of dirty water

You're supposed to shower first. Baths are about relaxation, not cleanliness.

They're a huge waste of water

This is a fair and valid argument, but if you limit it to be a special treat once in a while, then it's really not that bad

Not really an argument against baths, but most of the bathtubs I've had as an adult were too small for me to comfortably bathe in.
- That would only mean you should bathe more (in the sense of "amount of bath per bath"), not less.
That sounds more like the intended use of a hot tub.
- Yeah, pretty much, but not quite as hot so you can sit in it longer, and it's not a social activity which is nice if you fall on the introvert side of things.
Our household of three uses so little water we are almost always charged the minimum amount and that's after my penchant for baths.
I love baths. I love bubble bath.
Cat also loves baths. Cat is dangerous. It adds to the ambiance of the bathing experience.
I always thought the idea was to shower after the bath. I don't like them either way but that is a personal decision and I do not have any real arguments against them.
You're going to lose your mind once you discover hot tubs.

In my family of origin, "bath" was somehow a general term that included taking a shower as one possible interpretation/implementation.

Did you also say "I go to the bathroom" instead of "to the toilet"?
- I do. Absolutely. Saying that one has to go to a room always sounds better than saying that one, "has to use the toilet."

When I was a kid my family had a book of classical art, in it was a series of paintings featuring nudes with titles like “sleeping bather on a rock” and for the longest time I thought bather (rhymes with gather) was some fancy pants art word for nude.