Yeah no, if you actually spend your life doing sports and eating well you don’t look like that.
As a counter example, Jackie Chan is in his 70s and looks like this:
Another example, US Secretary of Defense who is still serving and only retired from the military in 2016 and has seen literal combat, and is 71:
If you’ve wrecked your knees with only 10 years of Brazilian Jiu-Jitsu it’s likely because you started at a later age, and/or didn’t start off really fit but rather got fit through it.
Or have a predisposition to having weaker knees, such as being primarily of European ancestry (weaker joints + arthritis more likely in exchange for plague resistance).
Old people don’t magically become fat.
Only on Lemmy would someone with (likely) zero experience in combat sports tell someone that a sport known for rampant knee issues is “their fault”, and not due to the increased force on the knees from doing a ground-based sport.
Again, only on Lemmy would someone say “you can’t be fat in your seventies, these famous people aren’t”.
Again, only on Lemmy would someone say “you can’t be fat in your seventies, these famous people aren’t”.
Get that Strawman! Nobody’s saying that. The sweeping claim that was made was in fact:
This is what a person in their seventies looks like.
A claim made by you. The point is, no, this is not just “what being in your 70’s looks like,” and no, involvement in combat sports does not automatically make you look like this in your 70’s.