Re: Camaraderie and hanging out
Definitely. In any group with no conductor, and even in sections in an orchestra, you need to be able to connect with every player around you. It's a lot easier to cue and signal other players if you know them, at least siightly, and aren't uncomfortable with communicating with them.
In a band, band, where youre not necessarily paid to stick with one group of musicians, liking and understanding your band mates is even more important. Who wants to work so closely with a bunch of strangers?