I agree, but it’s the responsibility of the stewards/supervisors and police paid for by the Club to prevent this and implement a delay and/or abandonment. I can also guarantee that the kickoff would’ve been delayed to sort this out had the game not involved Celtic (or Rangers). However, I also don’t think this type of scummy behaviour would happen at another game in Scotland not involving those two. As usual with the policing/stewarding of fans in Scottish football, it's one rule for those two and another for the rest of us. And that's why I rarely go to matches involving them