ehh i wouldnt offer a younger sibling alcohol, i didnt have a beer until i was 18 and that was 1.

I didnt DRINK like really drink until i was prob 19 and that was only cause i lived in a college apartment complex at the #1 party school in the nation.

I had my older sister buy me a bottle of vodka when i was 19, i drank the entire thing one night , to this day its hard for me to stomach vodka if its not mixed with something else.

I wouldnt encourage it, just cause kids today have enough shit going on, one less day he drinks the better.

ANd i wouldnt want my younger brother fucking at 14-15 either,lol. I was 17 when i lost my Virginity, and it was an act of god i dont have any kids to this day