There's no reason to believe he is falling behind. Kids that are introduced to computers in school catch up pretty quickly to kids that have been using them at home prior to attending school for the first time. By middle school, there's no difference in skill or familiarity with a computer between the kids who started early or 'late'. When it comes to computers, there really is no rush.
Tap that before you tap that.
I'm afraid I'm letting my kid fall behind
There's no reason to believe he is falling behind. Kids that are introduced to computers in school catch up pretty quickly to kids that have been using them at home prior to attending school for the first time. By middle school, there's no difference in skill or familiarity with a computer between the kids who started early or 'late'. When it comes to computers, there really is no rush.