Good for you Mark. Weed is definitely not for everyone, same as alcohol. I know people who are allergic to it and others who just can't handle it but do it anyway. Those dudes I've seen go to jail quite often for stupid stuff. One thing with me...I keep my nose clean and never stick it where it don't belong. Even my drivers license is squeaky clean.
Apart from the prohibitive cost, I'd rather face whatever life may put in front of me with a clear mind and the ability to deal with it. I could never use weed for the abovementioned reason, it made me quite ill, but alcohol clouded my judgement more than once and I couldn't always manage things that were confronting me.
Besides, what I thought made me happy and helped take away the pain, actually ended up making me more miserable. Nowadays I'm a happier and better person for being sober. I have the occasional shandy now and then to quench my thirst, but it's never more than a couple because I promised myself I'd never get drunk again... and into my 14th year I've kept that promise, which in turn has helped improve my relationships with family and friends.
As for your drivers license being squeaky clean, keeping it in your back pocket will ensure that nothing whatsoever sticks to it (friction) as you sit here, there and everywhere.
Oh, did you hear the one about the career criminal who reckoned he'd never been charged with anything... it wasn't that he hadn't done the crimes, he'd just never been caught. Now I'm not suggesting anything here... but you know all about the shoe story and if it fits.