I imagine elderly people aren't out sweating regularly.
Daily sweaty cardio is more than enough to control it for me as well. But if you can't, deodorants like Lume cover it up and as others have posted and there are soaps that work better on it than others. I occasionally put all my athletic clothing through a hot wash myself because as someone once said on BlueSky, all clothing is washer-safe if you don't care what happens to it.
sajithdilshan•59m ago