I think its like saying that People who drink 30 year old scotch at rich. Yes.. because you have to have a ton of cash to buy that product.
Weed is the cheapest drug out there so therefore more people can afford it in the lower income brackets. (which is a GREAT thing)
I don't believe there is a correlation between income & pot use other than like anything else relaxing (drinking, napping in the daytime, fishing, golf) if you do too much it will certainly have a detrimental impact on your income.
So, you could also say that People who watch Judge Judy (My personal favorite) all afternoon are poor. yes.. that's probably true 95% of the time. I watch it at night (time shifting channels) because I'm at work all day.
If you spend your time doing things other than being productive, you will probably, just by that nature of things, be in a lower income bracket.
These are some of the reasons I am a hypocrite with weed & my kids. I smoke pot & I don't allow the kids too nor will I.
I am over 40 years old. I worked my ASS off to get where I am & now that I'm here, I smoke all the pot I want. I can afford it. I don't have to be at the office at 6 am anymore, I can sit back on my laurels at this point because I have a staff I oversee. But I also understand that this means I am where I am & will probably not go any further (Im the boss other than the owners so I can't go any higher anyways). If I decide I want to go work for a larger company or what ever I will have to look at my time management skills but I am happy where I am.
When you're starting out or on a path to success, it take a lot more time & energy than you realize & you can't afford those kinds of distractions. I'm a dick for saying this but yes, MJ use will probably have a negative impact on your income especially when your young.
Please understand this is not the case 100% of the time. Old Willie's doing OK financially I would think.. but most 18 year old pot heads (The negative kind, lazy, unmotivated etc) not so much.
But most of those people (lazy, unmotivated etc) would be broke wether they smoked pot or not. I am speaking in generalizations & yes there are exceptions.
Get your shit together, get a good job or career that you like/love THEN you can handle all the distractions in the world.
My list of distractions are Golf, Jeeps, Smoking Pot, Growing pot, reading about pot, discussing pot etc. & I have discovered all this in the past 5 years. Honestly I don't think I would be where I am today if I have discovered pot in my early years. Would have been still ok if I found it in my late 20s I think instead of my late 30's. Maybe not quite as successful, but darn close.