I practice banjo sitting (lounging or reclining in my big chair actually). Every now and then I’ll stand but it takes a while to find the right stance and arm positions. I also find it more difficult to see the fret board so I’ve been considering some sort of padding I can attach to my belt that would push the bottom of my banjo outward a little bit to rotate the fret board into view. Or just start growing by belly more; that’s probably more likely to happen.
My banjo is so heavy though. I’ve have a nice dakota strap but oh man, my shoulder gets sore and my back starts to ache pretty quick. I don’t how those guys on stage stand playing so long with heavy banjos. Although it’s more appropriate to stand if you’re on stage, sitting during jams is perfectly fine.