Why is it so hard to get a door dasher in Pittsburgh?

Genuinely asking because I work at a senior home and get off around 7 I take the bus and it doesn’t go over there to grocery store by my home because I live in the west Mifflin area but anyway every time I get home and place an order and leave a high tip it still doesn’t get picked up😭 I wish I had a friend I could just compensate to go shopping for me until my car gets out of the shop it’s been almost 2 hours and no one has picked up the order. I’m just asking for anyone who dashing is my area just a bad area to place orders? Is it just downtown that gets the good dashers? 😭