In our house, there were 2 boys going back to boarding school, 2 girls going to Uni in a city a couple of hours away and 2 girls going to uni in a city an hour away (the latter did live at home some years but away some) - there was a "run" on DM's larder every Sunday before the various departures.....rice, pasta, jars of sauce, toilet rolls, washing powder, veg from the garden (in productive months). The boys always got the "treats" as they had no access to cooking facilities (biscuits, crisps etc). Although if there had been a "baking", we all got something from that. But DM also used to get small bags of mince (rather than the massive bags she'd buy for at home) and sometimes a few other bits of meat from the local village butcher (where most of the meat came from the local fields). Some of the DC took just a few bits on occasion, while others took half the larder weekly.
They also visited all of us on occasion in our various abodes. (But we never tended to go out for meals - even on long journeys, we had always been used to a flask of tea and tinfoil wrapped sandwiches by the roadside).
Some of us got part time jobs while in Uni or over summer holidays. Others relied more heavily on the "bank of M&D" (and some, not necessarily the same ones but yeah, the same ones still do).
Some of us figured out where to go local to our Uni to get cheap but good food, while others only bought branded convenience goods in the supermarket.
And yet, none of us are living at home anymore. We are all independent adults, all capable in the kitchen, and manage our budgets our own ways (with different levels of success but all solvent).
So it's nice that we can look back on the support we got from DPs at the time, especially when they were dragged in so many different directions!! 