This is kinda my feeling as well, if you treat them like actual game mechanics and not just tedious add on chores these could all theoretically work well. (Keep in mind I don't play GTA so I don't know much about the nuances of the games specifically)erttheking said:Well, there's no such thing as a bad idea. Only a bad execution. All of these could work out if done right.
Diseases: Finding medicine/cures for diseases could be a sort of mission objective when you get infected. Having to manage your medication so that you don't run out and die/weaken could be an interesting form of resource management.
Fuel: What's more intense than running from the cops? Running from the cops knowing your car is dangerously low on fuel and could spontaneously break down at any moment, leaving you helpless (unless you can steal another).
Taxes: Okay, I'm not really sure about this one. Would a GTA character even be concerned with taxes? I guess taxes could work as a sort of moral choice system wherein if you pay them you'll lose money but avoid any future problems, and if you don't pay them you keep all the money but eventually your home will be put up for foreclosure and you'll be evicted. Again I don't know how the GTA games work so this could be irrelevant.
Hunger: This could be interesting, instead of anything silly like dying from hunger or food healing you like in some games, food could give you an energy rush which would act as a temporary stat and skill booster. Lots of caffeine would give you faster reflexes and more concentration, lots of calories would give you energy to run faster, these would slowly drain away over time though so if you don't eat for a long time you'll start to become sluggish like someone suffering from hunger.
Hospital minigame: I'm not sure about this since it wouldn't be 'you' who's performing surgery. But of course there are plenty of games already where you perform operations on people so this could obviously work.
Jail: Of all these, jail seems like it could be the coolest. You could get into jail fights, try to win respect of other jailmates and gain allegiances, or try to break out. Alternatively you could skip this by paying bail. I could actually see this adding an extra dimension to the game potentially.