There is a reason there is a Van Gogh painting called 'the potato eaters' and it isn't called 'the sides of beef' eaters. Eating meat was a luxury simply because the vast majority of the people was poor. Poor beyond our present day imagination. In between the hunter gatherers (who had a diet that went from 'gluttony' to 'starvation' twice annually) and the industrialized production of meat (and chicken, and fish) there is a long period where poverty was the norm, and meat indeed an occasional treat.

'Urbanites' were the exception, living on or near the land was the rule. If you were lucky enough to live inside the walls of a city you were already rich.

The idea that you could eat meat 7 days per week, whenever and whereever you wanted is a historical anomaly, so don't present it as normal, or even a right. It isn't.