(or perhaps just the world of prosperous adulthood?) is more manageable than it used to be.
I am writing from Cafe Pasteur (free wifi), having just had a truly Davidsonian lunch (you should be able to order this more often in the US - beef carpaccio, buffalo mozzarella, salad and fries - not ordered separately, that's how the whole thing comes!).
Travels went pretty smoothly: I flew Premium Economy on the way over, though I'm in the regular economy class on the way back (daytime flight doesn't matter so much), and it was well worthwhile. Skipped lines to check in and go through security, and the seats are much more spacious: I didn't really get much sleep, maybe an hour and a half dozing, but it's nice not to be so claustrophobically tucked up against others and seat backs and so forth.
(I just remember the days when you had to have traveler's checks and what have you - pretty amazing to take out euros at an airport ATM and use a credit card to buy a train ticket from a machine - and the internet is a pretty nice thing too for those who are prone to homesickness!)