I want this. I'll eat it. I'd be willing to pay some amount more than the current cost of regular meat (including the pricier more ethically-raised meat).
Yahoo reports about a quarter of vegans say they would eat it.[0] MSU survey found that 35% of people overall would eat cultured meat[1], including a majority of people aged 18-40)[2].
It's not the majority of the population, but it's certainly not 0%, and certainly appears to be well into double-digit percentages.
People are price-sensitive, so if it costs more than regular meat it will have a tough time gaining significant marketshare, but there's very clearly a sizable portion of the population who do want this, anecdotal surveys of your friends notwithstanding.