I'm becoming a door supervisor (I live in northern ireland)?

so basically I live in northern ireland and in a few days I'll be getting trained up for the job, but my dad says its a bad idea, because he says that northern ireland security (bouncers) are ociated with UDA or something and it wouldn't be a nice bunch of people to get involved with, I don't know if this is true, I can't find anything on the internet about it and was wondering if anyone knows anything about it, thanks