I disagree. While I personally probably wouldn't patronize a cafe like this, there's definitely a niche target market that would love it.
Even if the business isn't appealing to 95% of the public, as long as you find a passionate 5% you can make a business model out of it.
Not in the low-margin coffee and scone business you can't.
Boomers love this sort of thing. Or at least talking about loving this sort of thing. Maybe they’re too addicted to Candy Crush style games though where they won’t actually patronize these sorts of places though.