I thought of more to add. I don't do large groups.
I will rarely make exceptions for special field trips, and GCM meet ups, but generally as an introvert I prefer one on one visits. I find juggling more than one conversation exhausting.
We do park days 2-3 times a week when the weather is nice and that is enough for me. If I have to remember more than a water bottle and maybe a snack for the Kids I tend to not want to go.