I am not aware of a controlled study on that subject.
I never used a computer until I was nineteen, and I somehow manage just fine at forty-three.
My waldorf-schooled daughter (grade 1 through 8 at waldorf) is doing just fine in her first month at a non-waldorf high school.
We are not absolutist about computer use. Around age 12 my girls have gotten email addresses and do limited IM and internet surfing. Both children were allowed to use internet sources (under supervision) for resaerching papers in seventh or eighth grade at their waldorf school.
Good luck.
David
I never used a computer until I was nineteen, and I somehow manage just fine at forty-three.
My waldorf-schooled daughter (grade 1 through 8 at waldorf) is doing just fine in her first month at a non-waldorf high school.
We are not absolutist about computer use. Around age 12 my girls have gotten email addresses and do limited IM and internet surfing. Both children were allowed to use internet sources (under supervision) for resaerching papers in seventh or eighth grade at their waldorf school.
Good luck.
David