Geeez Louise it's their own sink, I am sure they know how to clean it after washing their bits
It's not like they've left in someone who's lived on the streets for years to have a wash. I am note sure why people are so precious about them using the kitchen sink. Have you never been in a toilet in a workplace or a public place and heard someone leave without washing hands? And that person then walks around touching surfaces and handles? It's just them in their own place,
with their own bacteria, that are in their home anyway
Also they're used to going to festivals where facilities are limited? It's nice to be all glamorous and have another bathroom or to be able to go away/stay in a hotel when you do a bathroom up but I actually don't mind it that Lucy is being a bit too real for once. Not everyone has the option to go away plus the global pandemic and lockdowns make your options a lil' limited.