My dad gave me an offer and I was wondering your guys opinion

I put this post in the stop drinking thing and everyone said no, but as this seems, I guess the more “fun” side of drinking I was wondering what your suggestion is.

I am 15 and 1 month into my life 6,3 and 103kg (a bit more in the overweight side) and my dad has just offered me a deal. I am into rugby in which my dad thinks I can go places with my rugby skills and slightly starting to work out. Where I live (nz) it is legal to drink under 18 if a parent gives consent. His offer was if I don’t drink alcohol or do drugs or vaping first he’ll get my a personal trainer for either the gym or rugby 2 times a week as well as when I hit 18 and I am allowed to do all that I can he will give me a head start if 10,000nzd. I am 15 and most of you looking at the post are probably into your adult ages I was looking for advice from you guys as you should know what’s best for me. Am I going to miss out on fun and maybe get made fun of or am I helping myself in later years of life.