That's a lot of hate.......
I see some misconceptions being passed along as fact here too. Look up the SOLAS regulations and you will find it is not exactly as you are told or have come to believe by reading cruise message boards.
Are cruise line required to hold a muster or safety drill? Yes they are.
Should everyone attend muster or safety drill? Yes they should.
Is everyone require to attend muster or safety drill? Well that answer may surprise you.