There are many factors. First is trust, I trust an organism even if pumped full of hormones more than a lab cell culture. Then there is the issue of dependency, raising livestock nad hunting is low tech with no supply chains breaking down. Quality is also a factor, i will believe it when I see it that lab grown meat is nothing more than glorified ground meat. There is a lot to the unique properties of meat (fibers, fat, etc) which will likely take a long while to master, this vs thousands of years of tradition meat preparation and husbandry.

I am not for any top down laws banning things, but the idea that lab grown is anywhere an equal swap for real meat is silly. Italy has a genuine concern, they value food, and that comes down to the quality of ingredients.