I share the OP's views completely. My husband is a Computer Science Professor, and I am a physics professor. We use computers all the time for work and leisure, and we even have six computers at home, but we don't let our daughter use computers. There are much more valuable things that she should be learning, and they don't come from the computer. I have yet to see anything on the computer that teaches a skill or concept better than the old fashioned way.
For daycare/preschool, I took the hard line. I was paying a lot of money, so I had no problem calling the shots. No computer for my dd, even though the other children were using it. 3 year olds, and 4 year olds. (Some of the teachers in the day care even agreed with me.) The daycare respected my wishes without any trouble, and they always managed to find something else to distract my dd without her realizing that she was singled out.
Every single elementary school district touted how great it was to learn technology early. I am a big believer in public school for my family. I do not have the patience to homeschool. So after much agonizing, I decided that computers was not the hill I was going to die on. So I kept my mouth shut. I believed the reassurances of the various principals who said that there was so much curriculum that needed to be covered that there was no time to cover anything that did not directly relate to the state standards. Well, maybe so, but everytime my dd's K class had computer lab (one hour every week), I helped out with the class.
First of all, everything that was done on the computers was useless and inappropriate for the children's learning, in my opinion. Most parents would disagree, but I have my opinion. For example, most parents would think Starfall, google, and wikipedia a wonderful educational lesson for Kindergarteners. I thought it was dumb, and that the children would have been much better off running around outside for an extra hour of recess.
I also noticed that one child had a lot of trouble using the computer. I believe a big part of it was an undiscovered vision problem, but also some fine motor skill issues. I tried to tell the teacher about the vision problem hampering the child's computer abilities, but the teacher brushed it off and blamed it on the fact that the child had not had any prior computer use.
Well, what about my dd? My dd had no prior computer use, and to this day is not allowed to touch a computer outside of school, and yet she was the best in her class at using the computer. It wasn't because my dd somehow has special aptitude in technology. It was because my dd was able to read everything on the computer screen, and no one else in the classroom could. I mean, if you have 24 children who can't read try to google something and read wikipedia, you are going to have absolute chaos.