I agree that in general the drive to "put a computer in every classroom" is absolutely moronic; in general, I think teachers don't adequately understand which technology is useful and cost-effective and which is not, and especially for teaching administrators, "technology" is just some nebulous black-box codeword for "expensive equipment." However, there is value in teaching children how to use technology effectively. For example, very few people know how to properly craft a google search, or how to discern a reliable source from a poor one. A lot of people, and especially children, can't even tell the difference between sponsored content and regular content. These are very important to teach children and I think this should be done in a scholastic context, as few parents would even have the skills to teach this. The problem is teaching kids these skills without distracting them - the secondary problem is that they're probably not learning from people who are very knowledgable themselves.
I think the ideal solution is some kind of locked-down, school-only (as in, it must physically stay within the school) tablet or laptop. It's probably counter-productive to spend too much time teaching children to write/read from physical media when >95% of a child's exposure to media from now to the foreseeable future will be digital. Ironically maybe our best bet is a "digital typewriter"