Sounds like a plan, You can still pre load stuff onto a device, and give them the device with all the books downloaded. However they would need access to your accounts to re download them should they delete the books or the device becomes unusable. In short, tangible books would just be better when dealing with leaving stuff behind for future generations. Either that or lots of google play gift cards at Christmas with book suggestions so they can get them for themselves ;)
In this case the cost of convenience (Meaning less weight to lug around and access to an entire library on a single device), comes at the expense of ownership.
BenGee, I am grateful for the information and know exactly where I stand. I might as well buy the books and have something of value to hand to my kids.