Poor players usually seem embarrassed to play with good players.Not what I would have expected from a legendary teacher, but this thought has some merit. Pace of play is always an issue these days, and Penick also mentions how people hate to play with players who throw clubs, keep a negative mindset, and waste time. But he also says that if you "keep the game moving in a good humor," that you will generally be welcome.
The fact is that you may not be good enough to play with the good players, but no one will notice if you keep up.
The good players are not going to be watching you and criticizing your swing. They have their own games to deal with.
But if you hold up play, the others will notice you -- and probably not in a kindly manner. (p.156)
I can vouch for that. I have a friend who has always been a much better player than me; our game is that I try to keep it close, and he tries to beat me as badly as possible. He told me one day that he enjoyed playing with me more than with a lot of his friends who were much better, and I asked him why. He said, "Because this is just a game to you. I know we're going to have fun. You compete, but it isn't everything to you."
Of course, if the folks you play with don't feel that way, I have a tip of my own: Find some new friends. I make it a point to play with people I know will be fun to play with, and because of that, even my worst rounds tend to be enjoyable.
With a new golf season getting underway, you might want to give this tip a try. ;-)