I remember when the push to end alcohol sales in late innings began. I think it was the 90's. A fan came down onto the field and if IIRC punched the first base umpire. That kind of was the last straw after a lot of violence in stadiums involving a-hole drunks.

The games have been so much better and much more like games of the past. None of this standing around the mound adjusting the cap, stepping off the rubber repeatedly. And no more of the hitters re-adjusting batting glove ten times as part of a ritual and walking around outside the box. The game moves now.