Earlier quoted context omitted.
Not to go totally Adam Smith here, but if everyone did this, wouldn’t this just drive the cost of meat down? Making it even cheaper than it already is? Wouldn’t it make more sense to explicitly seek out “better” meat? Anyway, I agree, definitely no need to eat meat more than once a day, if not every other day etc.
Temporarily I guess it would drive the price down, and then production would adjust to meet the lowered demand. Think about it this way: if the number of meat eaters halved overnight, meat would be really cheap for a while, then a bunch of producers would go out of business and prices would rise again, and prices would stabilise again once production was half what it used to be.
Lobbying for regulation would be a more effective use of your time. Or something that converts individual action into collective action with an enforcement mechanism, like group shaming - but it's hard to get these to spread reliably.