[daveliepmann]

How are they for a grandparents pushing a stroller?

Would you say they encourage a vibrant street culture of cafes and shops?

The ones I've seen, especially in Berlin and İzmir, are loud and a hassle to cross. That's because walkways and bikeways over multi-lane roads are car infrastructure. They are there to prioritize high-speed automobile traffic with few interruptions. I'm happy for the one going up at my gym, but I know it's there to ensure bike/ped political forces can't endanger the trunk road underneath. True pedestrian infrastructure there would involve a major speed and size downgrade to the road, which is unacceptable, thus the political defensive move to pay out the nose for something car advocates would never normally fund.