@Mathieu-And-Kunj0
IMO, kitchen usage would really depend on your guest base, average length of stay and whether there are places to eat within a short walking distance. Since I host a lot of long term guests I do allow kitchen access but allow only light cooking such as eggs, omlette, single serving of pasta (prep+cook time 30 mins or less, no oven use allowed). Since my listing is single occupancy and near several local universities, I get a lot of exchange students in their 20s. The most I've seen them cook is eggs, toast, and mac&cheese out of a box, and instant noodles 🙂
Like @Sarah977 I provide the basic oils, salt, pepper & other condiments (ketchup, mustard, jam, honey) to the guest. And I give guests an entire shelf in the fridge as well as a shelf in the kitchen pantry to store whatever they buy. We technically do not provide meals or food to guests because we do not keep regular meal times and I travel for work frequently but we often ask the guest to join us and we do end up sharing food with our guest since guests also end up buying more than enough for one person.
One thing we did do before we started hosting was we re-organized kitchen storage so that host personal items, appliances, special occasion dinnerware etc. that we don't want guests to use or disturb are stored out of sight or in really hard to reach places. During the check in house tour we briefly mention which shelves, drawers (dishes, utensils, pots&pans) are shared with guests. We ask that other drawers, shelves, certain areas not be disturbed and if they don't see/can't find something they need to please ask instead of trying to find it on their own. We've had minimal issues till now.