Biggest problem is the economy and how it affects millennials. Owning a car is something of a burden now.
A new car costs, on average, over $33,000. This isn't the 1960s where you could get a job in high school and, in a few months, have enough money to buy a new car.
You're also required to carry insurance if you have a car or, in some states, if you just have a license. Auto insurance costs are steep, and they're skyrocketing. On top of that, many states pass laws every few years mandating insurance premium increases.
Then there's the burdensome almost Orwellian regulations, annual inspections, annual emissions, maintenance and repairs ... stuff adds up.
While to most of us, this doesn't seem like much, keep in mind that millennials are generally dirt poor -- and there is no reason to believe things are ever going to get better.