ME: A 12 yo Navy brat living in Italy, on vacation at a Palermo resort.
The waiter (addressing a table of 10-13 yo kids): I can take your order while drinks are self serve; soft drinks are over there, wine and whisky to the left of that.
ME: Wine it is then.
I don't know what the legal drinking age was at the time (mid-2000s), but if it was above 13 it certainly wasn't really enforced.
IIRC undercovers have, in the past, taken drugs to 'fit in' and keep their cover. The guidance to undercovers is probably 'try to avoid it' but the directive of 'don't get caught' and 'try not to die' probably override that.