Completely. I'm a software engineer that has a better shot at this than just about anybody, and I have no idea how to give a child a phone that's not just digital crack. If you think ScreenTime etc will do the job you probably have no idea what's actually happening on your child's phone.

Interestingly dumb phones are making a comeback.

They disappeared for a few years, but now you can buy a dumb phone, for example running KaiOS, that charges with USB-C and supports modern cell networks. You can even get a Nokia!

There is absolutely no need to buy a smartphone to any kid younger than 15. Now for high school students it's a bit different, they should be old enough to have self control and respect rules to keep their phones in their bags during class.