I'm 24 and these two who collered us were about my age to be honest, they didn't have a clue.
Once got stopped as a kid, i was about 15, with my relum tornado in a dissused car park near my house, someone had seen me and called the police, this was before I knew about permisson or anything, I was just shooting old tins, they raced up to be and disarmed me but the copper basically said 'i do a bit of shooting myself and to be honest your not in a bad place lad, i'll have to ask you to go home tho' which was sound enough.