It’s better for the local community if clubs can try to nip this in the bud.
You can bet that these wee crews of 14-18 year olds (I’m guessing) don’t only hang about at the football and if they get away with what they want at the games on a Saturday/Wednesday etc they are probably causing hassle in and around Paisley on other days.
Kilmarnock don’t seem to have too much issues with fans at games currently but the town in general is pretty bad for youngsters causing bother - we’ve had stabbings, arson etc from kids about these ages over the last couple of years.