The reason you don't remember it has less to do with age, and more to do with the fact that most of that never happened.
Indeed, they did suck, and I was greatly disappointed. They were like gods to me at 16 years old, and this was the first time seeing them. It was Fourth of July by the way, and it was $12 a ticket. I still have it.
But, they didn't stop due to an afternoon wind storm, and people weren't throwing fireworks at the stage due to said stoppage.
I remember thinking Jagger is insanely athletic for somebody 35 years old (I thought that was ancient). The one thing the fans were throwing were frisbees, and he was doing all his Jagger moves and seemed to have eyes in the back of his head, and would duck just as one was about to hit him. It became all part of his dance.
The part that sucked the most was they played something like 70 minutes. Maybe a little longer. Did no encore (and that's what I thought they were saving Satisfaction for) and were definitely wasted.