Hardly curtailing their liberty - they just can't go and misbehave at Brighton or England football matches :shrug: ......and they'll save a lot more than £1700 not buying matchday tickets or season tickets for the next five years!
Anyway, if video evidence shows anti-social, aggressive and...
Some people who are unable to behave at football matches have been banned form attending football matches? Sounds like a good thing all round to me. A bit harsh? Tough!