Right, I think I phrased one question slightly wrong.
I get that all we as passengers have to do is grab the masks etc. What I meant, is I've read several articles etc where people said they were surprised by the emergency descent. Would it be pertinent to warn people that that's going to happen? That's what I meant.
Probably not, but I did wonder.
I didn't know that about planes in the US not having drop down oxygen masks in the toilets.
I also noticed on my last flight, the safety cards said, "Please do not remove from the aircraft". Who would want to steal one? What purpose would that serve??