Can a British Shorthair be happy without constant attention?

They're actually one of the more independent breeds. I've found that my British Shorthair is perfectly content to do his own thing for hours-napping in a sunbeam or watching birds out the window-as long as he knows I'm around somewhere. On the one hand, they do enjoy a bit of affection on their own terms, but on the other hand, they won't pester you for it constantly like some other cats might. As long as you provide a stimulating environment with toys and a cozy spot, they're generally pretty self-sufficient.

Absolutely. A British Shorthair is basically the low-maintenance business partner you want in a cat - they handle their own schedule and don't demand constant oversight. I've had mine for years, and he's happiest when I'm working in my home office; he'll nap nearby or entertain himself, then come over for a quick chin scratch when it's efficient for him. They're built for independence, so you get more done without feeling guilty about neglecting them.