Kitchen-loo must be illegal these days - I think rentals need to have 2 doors between the two. Did it seem reasonable at the time?!

I would suspect that this is highly jurisdiction-dependent. Around here (random EU country), it would instantly make all studio flats unrentable, so I don’t think that’s the case. Most of them have a bathroom door, though.

I just recently(september) saw a sale advertisement for loo/bathroom-kitchen... With only small not full height partition next to seat...