I'm 53, and showing the effects of some of my training (dislocations and other injuries along the way), as well as some of my other activities.
The "load of plates" becomes the issue, already. Our house is pretty small, and we both have home offices, plus my workshop, and room for 5 animals and 2 humans. It's just crowded. So the few kettlebells and a couple of dubmbells is all I can really make space for in any place where there's room to actually use them.
I have a TRX kit, but haven't found a good place to set up at home - it got much more use when I used to travel frequently. I've gotten creative with a chin-up bar and old gi belts to do some of the same stuff, but can't do any of that right now because of my arms. Mostly it's just very ligth weights (nothing over 10 lbs for now) on a limited number of exercises, or bodyweight stuff (not even full-weight pushups for now).