People will laugh but playing golf has increased my social circle by a wide amount. I play golf with different people all the time. I play 2-3 times a week. We have a core group of people 10-12 that always play together. Would join in golf trips going to play different places around the world. Huge age difference in the group. People in mid 20's all the way up to some who just turned 80. Gotta find that hobby and then find that group of people.