I think you underestimate the massive changes in attitude that have come about due to the environmental movement. The very fact that your examples are eating me

I think you underestimate the massive changes in attitude that have come about due to the environmental movement. The very fact that your examples are eating meat and driving, and not dumping waste into parks, throwing trash on the ground, pouring used oil into streams, using lead paint, burning leaves and grass, etc is a testament to the changes that have occurred. All the behaviors I listed were commonplace in the 1950s, now they unthinkable and strongly disapproved of.