Let's just say it wasn't from cigarettes...
I didn't start running into the breathing issues until my late 40s, from late blooming allergies. Back then it wasn't really an issue for me. Concerts were definitely cloudier 25-30+ years ago.
Doesn't matter what kind of smoke, although I do better with smoke from the grill than cigs, pot, bonfire, incense, etc.
Had to use my inhaler waiting to cross University for the Texas game and so did one of the kids. Some guy just billowing cigarette smoke into the crowd waiting to cross that included several little kids.