Social Security is going bankrupt, we are out of money for old people. People can't retire. Solution to a problem: Senior Weed. Legalize marijuana, but it can only be sold by senior citizens. No more Mexican cartels, it's the cane and walker cartel. Grandpa and grandma are collecting all the money. Problem solved.
Added benefit: Every senior citizen center will be filled to the brim with visitors. Grandpa and grandma will suddenly get visited by their grandkids every weekend.
Added benefit: Grandpa and grandma can stop buying pain medication, they're growing it! More money for oatmeal! Some people say marijuana is a gateway drug, but when you are 65 and taking hillbilly heroin gateway to what?