Yes! If you want a comfortable level of control, the handlebars should be set at roughly waist level.  Adjustable scooters with a "T-bar" that can slide up and down may be useful since children grow by 3" to 4" per year between the ages of 2 and 5 and by around 2" per year after that. The handlebars should be adjustable so the scooter may grow with the child rather than the parent.  Choose a scooter with adjustable handlebars so your kid may start off at a comfortable height and go up as they become taller.