Earlier quoted context omitted.
Have you ever tried to do those sports with cheapest equipment? Because I did and it ended up the same as everyone else who tried it in a cheapest possible way - you stop because it is not fun nor pleasure and equipment limits you. That being said, for tenista you need to pay entry. For climbing, you will be kicked out of gym on top of it being uncomfortable. Climbing gym don't want you injured due to badly made seat…
> Hobbies are only expensive if you let them or want them to be. Climbing gyms aren't cheap. Climbing rocks outdoors is fairly cheap.
And you need to travel to the place where that climbing suitable rock is.