Travel does suck but it’s a cost cut industry where everything from what bag you’re allowed to take and how many peanuts you can get is a margin scraping exercise.
Airports are obviously the problem of the specific airline and airport. Some air terminals are wonderful, bright RF filled spaces that smell like Cinnabon. Some, are moldy leaking cesspools with pigeons inside (like LaGuardia).
Generally it’s more about getting where you want to go and dealing with all the other nonsense more than anything else.