@MorePressureMoreRelease
Basics (assuming self catering)
Things to eat off/with: big plate, small plate, pasta bowl, 2 mugs, glasses, cutlery
Food prep: big pan, small pan, frying pan, sharp kitchen knife, kitchen scissors, chopping boards, grater, pyrex jug, fish slice (or spatula or slotted spoon) wooden spoon, baking tray or oven dish, oven gloves, tea towel (tea pot or cafetiere if they really need a brew), corkscrew/bottle opener
Storage: tupperware type boxes of various sizes. Roll of kitchen foil
Useful initial supplies: washing up liquid, sponge/scourers, kitchen roll, basic cleaning spray (x2 if en suite, plus loo cleaner and bog roll). Washing powder or laundry tabs, fabric conditioner and stain remover
Basic food parcel (non-perishables, plus 24 hours worth, plus favourite snacks)
Bedroom: (check what's supplied) mattress/pillow protectors, spare sheets/duvet covers, drawing pins, stationery pack (scissors, sellotape, pens/paper/other course necessities and a book of stamps)
Plus their choice of clothes, other personal effects and homely touches
Supply of any meds
And tech - with all the chargers, and a multiplug extension lead
Carrying it all: small backpack for daily use, weekend bag (for short trips away) and at least one of those big woven plastic zip-up bags (multiple uses, eg for carting laundry around, as laundry room might be a short walk away)
That's what occurs to me right now - no doubt as soon as I press "post" something else will occur. But as with actual packing, that really doesn't matter, because you can always buy later or post things on to them (do check you know the correct postal address and that your DC understands the letter and parcel handling systems)