PC was introduced in order to compensate for the fact that so many people today have absolutely no manners, and totally lack consideration for others,. This is mainly because they are so busy shouting ME ME ME all the time. That along with the fact that they seem not to have learned manners in the home. The words please and thank you have now become rarer then hen's teeth [Note for Spaw, not whale shit!], along with giving up one's seat to the elderly the infirm, or a pregnant woman.
So in order to compensate for this lack of good upbringing, along with the inability to think for themselves, today's generation have to be told what to say and what not to say, and because they think through their wallets, financial penalties have been attached.
Gosh, next thing you know they'll be keeping kids at school till they are 18, in order to make the youth unemployment figures look better.
Giok