Why does it matter so much just let the man play

I’ve wondered why too. I think even though mick knows it’s the stones , he treats the shows also as mick vs audience and maybe feels he has to show off as much as he can . If he didn’t play guitar it would make no difference . Harmonica is different

You are wrong you don't see the foundation of the song Mikes guitar is adding a groove before catching harmonica

And he's playing the same bar chord over n over 😢