It's surprisingly simple. If you bottle like me, you need a sanitary work environment. That's probably the kitchen.
Dishes done, sink sparkling, counter so clean you could do surgery on it.... all makes for a happy SWMBO.
I'm really fortunate, in so far that while she only has passing interest in brewing her own stuff, she loves the smell of boiling wort.
My wife hates the smell of boiling wort. So this naturally led me to buy equipment to brew outside. She was happy I wasn't inside anymore. Win-win, so far.