sp
I understand areas change and evolve. I’m nearly 20 years older than you and have seen it. I also understand Philly a little better than you who spent a few years kicking around it as a college student and/or teenager. As long as they have the the highest city wage tax in the country, high income earners will never move to that city en masse and little will change. Until then it will continue to be dominated by welfare recipients, students, lower class workers and retirees.
Philly is not NYC nor does it have the draw for new residents that SD has. It has been a dying city for decades.