My boyfriend lives in a different state... so it's safe to say we fly A LOT.
And I can tell you, summer travel season is in full swing. Lots of families & people who rarely travel are hanging out in airports all around the world.
Do you really need to head to the airport 2 hours early?
I'd say, if travelling with your family, yes. Take the extra time to not be stressed out & let the kids walk around and explore. It's an exciting & nervous time for them. And most airports have a kids area they can burn off some energy in.
Travelling on your own? Maybe not the full two hours.