It's getting to the point where he is looking like an ordinary Joe Blow walking down the street and he can get away without being noticed. He probably has a bodyguard that follows behind him at a discreet distance.
I am sure that he also wears disguises at times to make life easier. He probably doesn't have to do too much these days in terms of a disguise to disappear into the crowd.
Funny thinking of the days in the late Sixties and early Seventies when just about all rock stars dressed to look
like rock stars all the time. Then they went through the glitter phase with makeup and nail polish and whatever else. Time catches up with everybody for sure.
The famous picture with Keith wearing the t-shirt that says "Who the f*ck is Mick Jagger" has come true.