When I got my private ticket, I was in on the conversion from the old U.S. airspace designators to the ICAO system. There were dire predictions in my flying club that people would be busting airspace, getting lost, etc. This was particularly intense as I learned to fly at Waukegan, just north of the outer ring of the TCA --er, the Class Bravo. Seriously, why would it be a problem? Same airspace, just different names. In fact, my one complaint is that there are stil TRSA's out there, and as a CFII, I keep forgetting about them ("What are these black rings?" my students ask and I reply "Oh, yeah..."). After about two years, everyone pretty much forgot about the controversy. Every once in a great while, I'll get a "20 year flight review" where I have to equate the names ("'A' is the old Continental Control airspace,...").
I'm almost 55 and I've learned one thing: people hate change. I've seen it in aviation, I've seen it my office, and I've seen it my family. What I think I've trained myself to do is this: accept that I don't want to accept change and that I have to deal with it. About as close to a Zen-like statement as I'll ever get...