Let me rephrase. The chances for friendships for people who enjoy these activities are significantly greater for people who don't at.
OP could force themselves to attend, and possibly make friends that way, but it's very likely the friends will want to continue to do those things.
I would also like to remind people that the way you are is not set in stone. You can change if you want to. I used to be an introverted loaner who worked on being extroverted and accomplished it. It's what I wanted though, I idolized extroverts. This may not apply to OP