I lol at the people saying, 'it's all who you hang out with, my friends are...' then try to use that as a reason why there is no 'Millennial problem.' Sure, this guys circle of friends can influence his thinking, the same as yours does to you. This isn't about old people looking down at the whipper-snappers, and this isn't about people dis-interested in being car enthusiasts. This is about the number of people in this generation that are completely apathetic about driving at all.
Sure, your dad, uncle, cousins, etc don't know anything about cars. But they've wanted to drive ever since they were a little kid, and they were probably in line at the DMV before it opened on their 16th birthday. The Millennial problem is not some anecdotal bull shit people have dreamed up due to their clueless friends. This is a widespread trend that has been proven with research. This generation is waiting longer to get their drivers license (if they get it at all), and fewer are purchasing vehicles.