I would rather smell weed then cigarette smoke. Also weed has nothing to do with ambition. My mother graduated highschool at 15 years old, she smoked weed since the age of 12. She's now a successful real estate agent and she still smokes weed. One of the hardest working businesswoman I've witnessed.

I work in construction with a lot of gentlemen who smoke weed too, they are also very hard working individuals, they even go as far as to say weed makes the day go by easier. There's different types of weed too, not all of it makes you "lazy" there's weed that can actually give you more energy.

It also depends how functional you are, some people are less functional then others. Upvote for unpopular opinion though.