I have a 6 and 3 year old both in ski school, but usually only for the morning.
In order to ski with them I cram my Deeluxe T700s into my ski bindings. You just have to reach down and pull the binding lever up. Yeah, it's sketchy, but it works enough. I have released from the bindings appropriately. I just don't push it or do bumps, which is fine because I don't really have an opportunity to do that with my kids yet.
I personally wouldn't want my kids to see me snowblading. Call me what you will. I want them to aspire to master real skis, and I want to provide that example.