As a vegetarian, I can't wait for synthetic meat to come to market. I love the taste of meat, but won't eat it because of how inhumane factory farming is. Once synthetic meat becomes a viable alternative, I will finally be able to eat a burger with some real flavor.
I personally can't justify killing something that feels pain and fear when there are plenty of other things to eat. If I had to eat meat in order to survive then I might reconsider my viewpoint, but to kill something that feels fear and pain just because it tastes good just doesn't feel right to me. However, I definitely have a much greater respect for people who hunt their food instead of just buying it all in the supermarket.
I've never had mice in my house, but if I did I would use a humane trap and release it into the woods. I see no reason to kill something unless it is trying to harm me or is invading my home and I have no way to remove it without killing it.
Yeah why not it is a sustainable way of getting the protein whilst taking up less space than cattle and other farm animals. Also it takes away the moral issues many people have with the fact that animals are killed, so i can't see an argument against synthetic meat.