A new UN report raised concerns on Wednesday about the excessive use of smartphones, calling for them to be banned in schools worldwide. According to the UN's education, science and culture agency UNESCO, the over-use of mobile phones impacts learning.
I think trchnical solution is not s problem, if we decide what needs to be applied we can do it.
If kid finds grandmother’s id - it is simple enough, punish grandma for providing her id, it will teach adult to be responsible. Additionally, not all kids will be able to do it. I doubt they will follow us.
My opinion, eve if it is obvious, parents are responsible Punish them for not protecting their kids.