14 year old begging to go to an 'under 18s foam party' FFS

[BigSandyBalls2015]

Am I right in thinking foam parties in Ibiza etc are an opportunity for a grope and a touch up in the foam? Or am I over-reacting here?

This is at a local nightclub in London, from 7pm-11pm.

My son went to these. Rule was I dropped them off and picked them up. I would wait away from the place but could see the entrance so they didn't get embarrassed. The ones he went to was well run with searches for drink and drugs before they went in. Have a little trust. Unless they have done something so you don't?