It'll be interesting to hear how good the parents are.
My office looked over the pond in front of our corporate office. There were (3) families. We had a friendly pool which family would decrease in size fastest.
Never ran into that issue. But we don't leave our ebikes unattended in public; we did our analogs though. Something about $4000 vs. $500. Few restaurants we ride to with outdoor seating don't mind our "table guests."