As an introvert, I think my time at the barn constitutes as my social time as a secondary thing , pony is always #1! I’m with you in that I prefer the lighter friendships as well. I don’t have a very busy social life and tend to get overwhelmed with social commitments. I deal with chronic fatigue and often times I just don’t have the energy to pull it together to be social for planned events on top of the down time needed after to recharge.
Being with my horse and helping around the barn with things like turnout, feeding, putting up hay are things I can power through and not get too worse for the wear. That stuff turns off my brain and allows me to decompress.
At my last barn, I did become very good friends with a couple who is very like minded with the horse stuff as well as them both being super interesting and inspiring as general humans. They are closer to my parents age and are like minded there too so we introduced them. We all get together for dinner and will sign up for outdoorsy/ nature events in the area. That friendship is definitely a couple notches above most others with horse friends.
Generally, I tend to be better with spur of the moment plans; if I’m feeling pretty good I’ll reach out to try and make plans or will jump onto existing ones. Nonetheless, my barn friend experiences have all be helpful and low pressure which has been awesome!