All you need for climbing is some shoes and a chalk bag. Possibly a crash pad. You're a hobbyist, and even pros (see: Alex Honnold, or anyone that primarily does bouldering) can climb with only that.
All you need to make music is some software, a playback device, and possibly a microphone (purely electronic music is a thing, of course). It's a hobby, you're not a professional producer.
Don't needlessly raise the barrier to entry.