In truth, from this side of the pond, there's some consternation over why America thought having kids running around was a good idea to start with - though most such events require some level of supervision, at least up to late teens. It's far less of a thing here (drop-down, "Open to all ages" Vs "Age-restricted").
I was gonna say, Megaplex used to have something of a reputation as being a "PG con" and didn't even call itself "furry" for years (some websites are still in denial over this...). So if they feel they have to go 18+, something's up.
In truth, from this side of the pond, there's some consternation over why America thought having kids running around was a good idea to start with - though most such events require some level of supervision, at least up to late teens. It's far less of a thing here (drop-down, "Open to all ages" Vs "Age-restricted").