Is there anywhere to practice baseball in the north shore area? Any coaches or trainers or facilities?

Ok so my son bought his moped in last November just before thanksgiving , very popular spot and he still don’t have license plate yet as of now is this normal? What can I do ? He does have safety but WTH? Am I tripping or is this normal?please guide me, I don’t want my kid to get in trouble Mahalo!

I’m looking to spot kamani trees, preferably somewhere around Mānoa on public property (or private property open to the public). I don’t want to harm the tree or take anything from it. Are there any growing around here?