I wanted to clarify that when I said no kid should have an unfiltered internet device, I mean that on a personal computer the internet should be filtered.
But as far as portable devices, THE KID SHOULD NOT HAVE ONE AT ALL.
Which parent is going to monitor his kids device everyday to see if he reset it or installed something that will bypasss the filter?
Why on earth does a kid need one? Aside from the obvious problems of issurim, he will never develop a proper cheshek for learning and Mitzvos. One needs to concentrate on learning and schoolwork with a full heart and mind and with no distractions in order to succeed.
I don’t give my kids cell phones until after they graduate HS and go away to an out of town Yeshiva or Seminary where they really need one.