The kids themselves and their distraction from staying focused in life and also getting very tech savvy at such a young age when it’s totally unnecessary and unsafe for their frumkeit and yiddishkeit.
If your child is in need of a cell phone to stay in touch with parents and others then get them a kosher text free and filtered phone.
It’s not worth the consequences trust me before it’s too late C”V and the innocent child had already started to be affected.