Japan can turn AI demand into industrial strength

Ive watched a few videos of people travelling around Japan. It seems like a really nice place, but only has one problem.

Where are the Japanese ?

Why are there almost no seniors or kids or anyone actually enjoying their country ?

I saw a video the other day of someone riding around Tokyo near the water line in the corner near down town. We have all seen the famous sights, the busiest train station, the busiest traffic intersection with millions crossing every day.

How is it possible that a city of 35M has almost nobody, less than fingers on your hand actually riding a bike, walking around, enjoying their life ?