I feel like a lot of practices write their guidelines with the expectation that you, the bariatric patient, are the single dumbest person who has ever walked the earth. If there's even the slightest chance that something could be problematic for anyone, they'll just forbid it for everyone, because you can't be trusted to, like, adapt or think or anything.
And maybe they actually had a patient who was the single dumbest person who has ever walked the earth. That person put a piece of chicken in the microwave and let it go for 60 seconds and still choked it down, but then they got a tummy ache.
Now no one gets to have warm leftovers.
Maybe they had one patient who thought that 'black coffee" meant a triple-caramel venti machiatto.
Now no one gets to have no-cal brewed caffeine beans.
Maybe they had one patient who guzzled full-sugar Mountain Dew by the bottle post-op.
Now you can't have a sip of champagne at your wedding.
My dietician told me I can't have soup, because some people have trouble with it. Great, that's terrible for them. I've perfected my soup technique and I'm pretty sure that I'm not going to balloon back into super obesity because I had a cup of chicken noodle, so leave off.