The 71-year-old rocker prefers to relax in peace before gigs, whilst Ronnie Wood and Keith Richards play snooker together.
The Stones’ longtime production manager Jake Berry said: “It’s not like he shuts himself away and says, ‘Don’t f**ing come near me!’ It is his time to retreat.
“I mean, imagine being Mick Jagger for a day. You can’t take your kids to the cinema because you get mobbed, you can’t have a quiet evening because you’re accused of dating somebody.
“Therefore, we — meaning this close circle we travel with — respect his private time for an hour or two each day.”
Jagger said: “We are not doing this ... for money. You couldn’t buy Charlie Watts if he didn’t want to do it.”
And Richards added: “There is passion, but nobody in the band talks about it in terms of passion or a quest. We don’t need to. It’s either there or it isn’t.
“This is not a matter of regurgitating or nostalgia. Somewhere inside us all there is a feeling that, yeah, there is a lot more to be found out yet.’’