We have two kids who were raised essentially screen-free until 3, then on a 1hr a week diet until 6. We worried all the time about the transition to school, and the cultural norm of allowing a lot more screen time. This was an imagined dragon - this has not been an issue at all. My oldest just got a Switch, she plays less than 1/2hr a day - then she walks away without issue. She has friends with phones and iWatches (…
Maybe I focus on this more because younger me was denied video games for many years, until I bought my own consoles/pc and got to "eat the whole cake".
I really don't want to reproduce that pattern.