A child’s access to WIFI is a dangerous action, do everything you can to disable through password, filters etc., in addition a foundation of education, knowledge is a necessity for the youth.
If the device is for viewing children’s videos, playing games etc, you can buy a device that has NO WIFI capacity.
Don’t expect sincere & well-thought out answers on this chat thread, majority of responders are looking for a laugh or to show their ‘kannuos’ attitude. With success,