dont get me wrong, i do not disagree at all with how you think. it would add some level of busywork... but i said this a few times in the past, what this game needs is more world interactivity. we "need" some other ways to earn money. adding a hunger meter doesnt need to be anything absurd. it could just manipulate your sex bar recovery, if you have it near full you regain it faster, if its low it recover slower.Anyone who wants to add chore meters to a sex romp game is a degenerate of the highest order and it's not because you're into cumplay. Like I find the kink inoffensively weird but there's no reason it couldn't be an option without also adding in chore mechanics.
similarly, it could also be used to boost or diminish how you do on other things, like the training. maybe if you are too hungry you wont have energy to use, or do poorly, which will affect negatively those you train with. but if you are near full, you can do very well, which can earn you extra love points with them.
the meter also doesnt need to be anything absurd either, im not asking for a "we happy few", but you could have it just diminish on its own, with you eating once and being able to remain full based on how much you pay. maybe the cheapest option doesnt cost anything, but also only fills 25% of the bar.
you could also have it gain upgrades in the level up menu. maybe you could level it to down slower and the third or fourth, you just do not need to eat anymore.
on the other hand. i do feel like jobs should be a "thing" in this game, as an alternative to money making. we could help beast in the lab. or as an assistent teacher. maybe work in the cafeteria, or do a stunt as a janitor for a few bucks every once in a while.
imagine how many fun sex scene you could get with the girls during jobs. you work as a janitor? one of them drags you into the janitor's closet for some bang but because its so small, there's only a few things you could do in there. or if you work in the kitchen/cafeteria, you could have the option to offer a "special sauce" with their meal. or maybe give you an handy/blow as you work.
hell, you could even use it as a situation to addict some girls to your cum before being able to get a hand/blow/sex scene with them by putting it in their meal.
i also keep saying this to people. bad sand boxes are not bad because sand boxes suck, they are bad because they have bad mechanics that people dont want(or worse, are forced) to interact with. having those things there for extra interactions isnt bad.
finally, sorry for the colossal post. i really enjoy talking about this kind of stuff.