Just to tick off some benefits to technology access:

- Technological awareness - bridges the "digital divide"
- Excellent learning tool, particularly for visual learners
- Social grease - provides children with opportunities for shared experiences/interests to foster relationships
- Computer games are linked to development of advanced, creative problem-solving skills

So, just as excessive access to electronics can crowd out important things such as social interaction, imaginative play, and exercise, excessive regulation of electronics can crowd out some of the benefits indicated above.

Likewise, I'd be genuinely worried if my DD was reading for 4 hours a night, because that's time that she's not getting exercise, interacting, etc.