Might be the fact that someone cant go without some THC for a couple hours.
If you needed alcohol that much you would be an alcoholic.
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If you needed some other drug that much you would be an addict.
Needing THC that much might just be a you problem.
I drink alcohol, used to more than now, but I have never needed a drink so bad that I couldnt go a couple hours without. I have never snuck alcohol into JTS, I have never left at any time to go get a drink before coming back. I have went to many games in many locations and only a few have I ever had anything alcoholic regardless if they sold it or not. I like to have a few but it is not the end of the world to not have them. And yes I have partaken in the THC as well, but it is not something that I find myself needing to control my life, to consume everything I do, just as alcohol doesnt.
I have been a supporter of alcohol sales and to stop reentry for years, mostly because it is a benefit for the AD bringing in more money, and it is what all of our peers have done in recent years. Not because I need or plan to spend much on it myself. Hell I rarely get much of anything from concessions, as I can go a few hours without needing to stuff my face or chug a beer. Let alone getting my weed fix.
As you said you have a simply way to add it to your soda etc whenever you want, or eating a gummy etc, so you should be just fine to not get the shakes too bad during a game.