having been to a psg vs. marsellies match in october, i can vouch for this. looked like loads of trash. my wife was supposed to go with me, but she ended up getting sick and my father in law came instead. i'm honestly really glad it happened that way, because it was probably a 50:1 men to women ratio and i didn't see a single child.
it was still a hell of a time and the people that were there were definitely wild.
I can confirm all of this. It is definitely not the atmosphere that I would like to bring my family to. I think this hinders the appeal of the sport to more of France. And the supposedly "die-hard" fans are pretty quick to stop supporting the team if things go south. The French are pretty flaky like that.