It's likely that I am older than even your great-grandfather. Isn't that a peculiar thought? I should say that if anything is lax, it is your century. Very many people have awful manners and don't respect their elders or behave properly. I don't mean you. You seem like a good sort. Others of your time aren't always so easy to get along with, though.
A prig would be the sort of fellow to say that not only will he not have a drink, you shouldn't either, and he'd likely lecture you on the fact. At length. I don't think you are one, either.
Different cultures have different magical systems, and use different words to describe them. I might not have been to Germany or America but I do know that ordinary muggles cannot disappear from one place and re-appear in another. I shan't call your talents magic if it offends you, but it does seem that way to me.