I grew up squirrel hunting the eastern hardwood forests of southern Illinois & Missouri. I didn't get to deer hunt until I was 14 (lack of opportunity), some duck hunting mixed in. But squirrels were about it for several years of my young life.
Season opens far earlier than others, it gets you into the woods during good weather, it provides a lot of action, is a great buddy hunt, and you can get access to private lands a lot easier than trying to chase deer or turkeys.
It's also an opportunity to work on woodsmanship, and the chance to take out some old guns that don't get to see much use- a stock loading Browning 22, the Henry, a Savage .410/.22, a 16ga Model 11, an Ithaca 20 ga, and a few other inherited pieces that just don't get the nod for chasing ducks, geese, or turkeys.
And then you're home somewhere between 9-11, squirrels cleaned, followed by biscuits & gravy. There's something very nostalgic about it, and it's something I really miss since moving to Montana. Definitely want to find some more small game opportunities out here, just for some fun hunting.