I've seen several. One was an ex gf who was making $50k in the early 90s in insurance and would be making well over $100k today.
. Went through every 3 day and 30 day intervention known and still ended up as a non-functional alcoholic. Now on SSDI and awaiting surgery to remove a destroyed kidney.
Her sister chose to destroy her life with prescription drugs. She is every bit as non-functional.
Their entire family is actually part of an IU professors Case Study in Alcoholism.
None of them ever touched pot
Worse yet, you indirectly advocate making it more available to children because we all know that if it is available to adults, more kids will use too. That is an undeniable fact.
To use your the alcohol example: many kids have raided their parents alcohol cabinets. Plus, like alcohol, since it has lost the stigma and is a lot more available, parents will give it to their kids. And those kids will give it to their friends.
The only saving grace is that it is extremely expensive wrt the street pot with the tax of course.