As a technologist and parent myself, I find the biggest problem to be the lack of fine grained parental controls. Yes, technology in of itself is not the issue, it is the highly addictive nature of certain software, but on different devices, limiting what they can/can't do is very difficult. When school started online, my 8 year old was initially really engaged, but then started getting a bit bored once she got into…
I had managed to get myself unrestricted internet access from pretty much age 10 onwards using a "broken" laptop I had secretly fixed, and the "restricted" iPod Touch that I had unlocked by editing the Springboard.plist.
At age 14 they had a talk with me where they said they finally were going to give me some restricted internet access and I almost burst out laughing because I had been online hours per day for the last 4 years, but managed to keep it together.
Ten years later and it's a fun story we all laugh about. I wonder what I would be doing today if it wasn't for those parental controls motivating me to break systems.