I think some people
need the social aspect of a gym. Also if you actually remove yourself from your home environment, it's comforts and distractions and travel to another
purpose-driven environment like that (like a gym, office, studio, whatever) then you are more likely to actually be productive. It's why some people who
could work from home still set a strict work schedule and often travel to an office or at least separate a "work area" from their living space in order to help transition into "work mode".
I've been distancing myself from gyms for years, mostly because I got tired of being leered at and approached by meatheads who assume that a woman goes to a gym to be hit on
I've slowly built up a home gym with the few kettlebells and barbells I need and can happily work out at home whenever I want, wearing whatever I want, and not get creeped on. There are a handful of machines I really miss but I can make do without. I know a couple of guys who have absolutely amazing physiques from calisthenics alone, so expensive equipment isn't a necessity.
Even if I was a gym regular, with COVID-19 running rampant I wouldn't even consider it. Not because a gym
couldn't be made a safe environment, but simply because you cannot trust people to comply with even the most basic precautions. Before COVID-19 you couldn't even rely on people to use towels and wipe down equipment after they used it, so why would that change now?
A gym could be made a low risk environment with proper ventilation and equipment hygiene.. and
masks.
I can already imagine people complaining about how they can't exercise in a mask. People have run
marathons wearing masks. People in their 40s have summited Everest without any supplemental oxygen. If you're crying about not being able to breathe in a mask then you might want to try some basic cardio like
walking to get yourself at least onto the bell curve of basic human conditioning