DVD's are dog shit though. They break really easily, those ungodly annoying ads at the beginning and the amount of space they take. Streaming just beats DVD's 10-to-1.
They were also talking about a kids show, maybe for some backseat entertainment on a long drive with limited cell reception and/or data? Or maybe the kids have an old TV at home with a DVD player and no smart features?
You don't need quality to watch paw patrol in the car or on a plane. A cheap portable DVD player does wonders for sanity while traveling without needing to dedicate and pre load a tablet with kids stuff.
Not everything is available on streaming. Even things that are available might not be on the services they have subscribed to. Also, while DVDs often have a "play all" option, you can typically play a single episode, and it will stop when it's over, which is pretty useful for helping to limit how long the kids are watching TV.