Average military tour 2-3 years. If I had to guess, DAOs dad did a tour near there, maybe FT Dix when he was around 16-18. Which would explain why DAO reps Philly.
But what I also think is that DAO did not grow up there and moved before and after those 2 years in PA.
I always wondered why he lives in TX now, this explains it. He is closer to family. I bet he is near a base there too.
DAO is a military brat who moved a lot when he was growing up. Philly is probably the closest place he has to claim as where he is from, since that was where he was when he learned about pussy.