I'd love to make my flights later, but I, probably like many of the 'too-early birds' don't always have a lot of choice.
My nearest airport is small, and only has one flight a day in/out to many locations. So - I have the choice to leave from 'home' and have to hurry-scurry to make it to the airport in time for the return flight.
Or I can make a 3 hour or more drive to another airport, where I can choose to select a later flight home. This will cost me more, in time, in airfare, and in gas and parking cost. (I can get transportation to my local airport for under $10.)
YMMV