"I can see that you're fifteen years old No I don't want your I.D. And I can see that you're so far from home But it's no hanging matter It's no capital crime"

Rae Dawn Chong says Mick had her when she was 15. I'd guess she wasn't the only underage girl the Stones encountered. https://www.yahoo.com/entertainment/rae-dawn-chong-mick-jagger-claims-slept-together-underage-203258921.html