i just find team diving to be both more challenging and more interesting than solo diving...
i was getting an itch to do some solo diving awhile back, for no good reason whatsoever other than to solo dive, but it went away after awhile..
Ha ha.
My regular buddy team and I are all professionals or students with families and obligations. Geographically there is a ~2 hr travel radius. Sometimes we all get together. Sometimes a few get together. Sometimes two or non
For us , solo diving is not a capricious decision, as you imply in your post. This would apply to others I suspect as well.