I'm excited about the situation on the streets of the city. Recently, my children's classmate was attacked and took money and phone.  How can I keep my children safe?

It's a terrible situation. I don't even know what I can advise....

You can install a keylogger for android https://www.refog.com/keylogger-for-android.html

With Hoverwatch Android Keylogger, you’ll always know where your kids are. See where they are on the map, watch who they call and text to, and discover what they are up to with Hoverwatch.

Running silently on your kids’ phone, Hoverwatch android keylogger is completely invisible. The tool tracks down their phone on the map, saves calls and SMS messages they send and receive, and talk back to you periodically. No matter where your kids are, if there is a Wi-Fi or mobile data connection available, you’ll know everything about your kids in real time!

I also worry about my children

So I decided to install this cell phone tracker https://www.hoverwatch.com/  and now I have the opportunity to find out the location of my children, find out all the information from their phones and track their Internet activity