I also hear that resistance bands as gimicky as they sound, they can be helpful especially for the elderly who have lost mobility, physical therapists on YouTube will say things like: elderly people who cannot go up or down the stairs after using resistance bands find they've regained mobility.

So don't ever sleep on exercise, my biggest take away is you don't need to be a super weight lifter or whatever, you just need to do enough every week that it keeps your body going.