At what age can you start travelling?

Okay, so, when can you actually start traveling with a baby? I mean, seriously, the thought of taking a newborn – like, two weeks old! – on a plane makes my palms sweat. Two weeks?! Isn't that insane? I've heard some airlines even let you fly with a seven-day-old, but… why?! No way. Personally? I wouldn't even think about it until they're at least three months, maybe even more like six or seven. You know, closer to that half-year mark. It just seems so much… easier then, right? Plus, you're past that super delicate newborn stage. Remember those first few weeks with my little niece? Oy vey. So tiny and fragile. Anyway, definitely, definitely check with the specific airline, because it’s kind of a wild west out there. Everyone seems to have their own rules. Don't get caught out!