<human>: Condense the text into a few key points

A little background:
I'm a 22 year old male with two beautiful siblings. One 23 year old sister and one 14 year old brother (to turn 15 in August).
I have been smoking since I'm 14 and have done some drugs, though I have completely stopped the drugs since 5 years or so.

I just caught my little brother with an e cigarette, and he's also admitted that he tried weed (1 hit he promises, though like bill clinton, i suspect the real number is higher). I didn't suspect a thing until I caught him. I was shocked and am very disappointed/sad... I have always gone out of my way to not smoke in front of him, wash my hands, and generally try prevent him from following the same path as me. He is more athletic than me, and regardless, I just don't want him smoking or doing weed, especially at this young an age. However, this seems to be the norm these days; it seems like all kids are doing these sorts of things (I was there not too long ago) - hard to resist peer pressure...

My parents are aware of my smoking habit, but I think they don't suspect a thing from him. They will be very disappointed when I tell them upon their waking up. However, I know, being not too far detached from that period, that severe punishments (grounding him, preventing him from seeing certain friends, not giving him money) will very likely not work to prevent him from continuing smoking.

Which leads to my question: what can we best do so that he does not continue smoking ?
<bot>: caught my little brother (14 years old) with an ecigarette. Harsh punishments unlikely to help. What can I and my parents do to minimize risk he continues smoking ?