Thames Valley Police has issued guidance to Henley parents regarding the rules governing privately owned e-scooters in Oxfordshire.
The devices are classified as motor vehicles and may only be used on roads, pavements, public footpaths, parks and other public areas when they form part of an approved rental scheme.
The police said privately owned e-scooters generally do not satisfy the legal conditions required for use on public roads.
Those conditions include suitable insurance, vehicle registration and compliance with road traffic legislation.
Parents were asked to discuss the restrictions with their children and encourage the use of helmets and suitable protective equipment.
The police also advised that children should use e-scooters on private land only, and only when the landowner has granted permission.