I need to be pedantic (because what other way is there to be): You can launch the ball from anywhere behind the line. As such, aim isn't just a matter of release direction, but also of starting position. Throwing from just to the side of center along with a slight angle is often better than perfectly centered and perfectly straight.
If you want to bowl a strike, the optimal place is almost certainly inside a bowling alley, although with a little luck any establishment uphill from one could also work.
It's much simpler in adulthood: One must simply not care about whether or not they are perceived as cool. You should care about other stuff exactly as much as you feel like.
A rare case where I think he has miscategorized: electric unicycles make a LOT of sense. The giant wheel rolls over common minor things that kill scooters, and you don't need both hands on it at all times to steer.
The category is "practicality", not sense-making - unicycles are harder to learn, control and master, and are much less common and more expensive; in all those senses they are less practical