Oh yeah, for sure. I started training consistently at 24 (28 now), and used to train every single day, sometimes 2-3 times per day. My body was quickly worn down! Especially after entering a competition gym -- where the focus was live rolls only.

Nowadays, I stick to technique based learning and lightly spar. Never competed, never will. So yeah, don't be stupid like me and BJJ will be kind to you. :)