This is very stupid. No one wants this. People don't like false sincerity. Even when we know that it's someones job to be nice, we appreciate when it feels genuine.
If you want people to genuinely be nice, give them reasons. Make them happy. Help them stay motivated. Otherwise you cheapen "please" and "thank you" even more than is already the case and get zero value out of it because no one will appreciate it knowing that it's forced.
A world where everyone says "please" and "thank you" isn't a better world.
Huh. So the legacy of "worse is better" from the old Gen X days is starting to bite us in the ass due to the authenticity tax it represents when combined with an increasingly ossified corporate business structure that sees maximization of value extraction and minimization of cost(via maximized automated sampling of the environment) as the primary KPI rather than delivering increases in QoL through good service/quality goods to customers at good prices, good treatment and working conditions for workers, and maintaining good relationships with suppliers and business partners?
If you want people to genuinely be nice, give them reasons. Make them happy. Help them stay motivated. Otherwise you cheapen "please" and "thank you" even more than is already the case and get zero value out of it because no one will appreciate it knowing that it's forced.
A world where everyone says "please" and "thank you" isn't a better world.