"Millennials are "too cheap to own a car"
Most don't, yet they want all the benefits of streets. I know a few like that. They say a car is too expensive to buy and maintain, it's too difficult to find parking around their downtown apartments. They want high-density "walkable" environments. They want "better" mass transit. They prefer bicycles and want bigger bike lanes.
The part about "nasty" tracks was sarcasm because they're not willing to deal with something that's less than ideal, hence the enclosed bridge. If you're on a bicycle, how can a few extra blocks be a hardship when you're heading to the newest coffee bistro?
They want you and me to finance a lifestyle, yet aren't willing to pay for it themselves.