I also lived in Dc without a car for 14 years. If I went all the way to the burbs I would sometimes hope or expect them to scoop me up from the metro. Anything within city I have ridden my bike, walked , metro, or Uber. I don’t want to have my friends feeling like they must drive me home….. I don’t expect them to offer either . Unless it’s a one_off scenario like I am completely drunk and they are sober and want me to get home or they are already taking someone home in my direction. on the flipside, I did get a car and I will not offer to drive people to the airport if I don’t want to . I think airport pick ups and drop offs are bit of a big ask. Much bigger if it’s Dulles or BWI.