Why dont Millennials buy motorcycles?

My Brother has a new Harley and pays through the nose for everything including mandatory service intervals for the warranty at 250 a service.

My Millennial Son rides one of these.
No AC
No windshield
No stereo
No cell phone holder
No cup holder
Near zero maintenance
Low insurance
WAY lower cost on pretty much everything and faster than the Harley in acceleration and top speed both.