mother_of_hacker

My son is 11 years old and see all access-restriction software on his mobile phone as a challenge. Yesterday we have installed ESET Parental Control für Android on his phone and today he manged to switch the Android user to his secondary account. The secondary Android account seems not to be secured. Do we have to perform the installation routine on that account as well? If so, how could we prevent that our son simply creates a third user on Android? Regards, Ulrike