im only listing major drugs
weed-7(hard to believe but my brother is 4 years older and i smoked with hime one time when i was 7)
alcohol-10
coke/crack-14/15 not sure
heroin-14
stupid OTC drugs-13
cigs-9(started actual smoking at 12)
prescription pills-did my first one at 14
thats about all i can think of right now.