...my son has been doing some research for a university piece and violence and things like throwing things onto the pitch is definitely on the increase since lockdown.

5 Live did an few interviews with some anonymous "ex hooligans" and the general opinion was that cocaine use was rife - one guy even said "I'd never let my child use a toilet cubicle at a football stadium as there would be cocaine over pretty much any surface that it could be snorted off"

I think it's a society thing, not just a football thing, and how the emphasis isn't still on that thug who headbutted Billy Sharp rather than Vieira I have no idea.