Question

Hello Rabbi. I’m currently studying the laws of a Jewish holiday, in keeping with my tradition of dealing with things that are as unrelated to the season as possible, and I came across an interesting phenomenon in the halakhic decisors.
Regarding heating water for washing one’s body, the Shulchan Arukh writes, following the Talmud and the medieval authorities (Rishonim), that it is forbidden to heat it, since this is not a benefit enjoyed by everyone.
Obviously, all this was true at some point, up to a certain period. The interesting phenomenon is that even the halakhic decisors of our time have simply copied one another in a kind of circle where each one pats the decisor to his right on the shoulder, but no one was kind enough to stop for a moment and think that “a benefit enjoyed by everyone” is a dynamic concept that can change. After all, it is obvious that nowadays it is completely normal to bathe every day, and someone who follows Maimonides’ recommendation to bathe from Sabbath to Sabbath might be a better Jew, but he’d have to live alone, and about him Scripture says, “Keep far from a bad neighbor.”
In short, based on basic rational thinking, it is obvious that nowadays this should be permitted, and yet I haven’t seen any halakhic decisor who wrote to permit it, even though they permitted things that are far more controversial, like cigarettes and the like. Maybe I didn’t look in the right place, and maybe I’m missing something important here, but in any case I’d be happy to hear the Rabbi’s opinion as a rational person with the ability to navigate the halakhic landscape