Some people have unique situations and do not need the use of a kitchen at all. My diet consists entirely of bottled Soylent and protein bars. I never need to cook or utilize any other functions provided by a kitchen.
But good luck trying to flog your flat or house to the next potential owner when you decided to rip out the worktops, hob etc to re-purpose the kitchen for some other non-food activity.
I thought I'd heard it all regarding peculiar habitation behaviours until this sub-thread.
I don't think I'd be ok with inviting over guests and shoving bottles of soylent in front of them as a "meal".