I'm just a sample size of one, but I'm willing to eat it if it tastes good. I think the biggest problem is habit (or I guess that overlaps with culture). People are hungry and see a burger for a decent price and know it will be acceptable. A lot of foods you can just add chicken or ground beef to.

I've had some fantastic vegan food, but the only vegan food that's a commodity for me is Indian food or faux-meat products. So convincingly good faux-meat is probably the easiest way to move people.

My big problem is that most meals without meat I'm not satiated. This also happens when the main protein is fish. For salads I hear a bunch of people joke that you get tired of eating before you get full. I also think this is habit for me. I'm not sure if meat alternatives address this.