I like ebooks. Convenient to get & search and you get modern functionality (font size control, updates, smart indexing, etc). What's not to like? Only one thing: Giving up paper copies means giving someone else control of your library.
Even if you "download" ebook content and keep it out of the cloud, how are you going to read it? Oh, just use a networked device which.... oh, right, that's a fail because devices in the future will not even display forbidden content (and will report your attempt). Never happen because devices like that don't exist and besides people wouldn't stand for it? I was once told no one can possibly keep track of the websites you visit because that mechanism didn't exist and besides people just wouldn't stand for it. How'd that work out?
Only paper can be hidden and read back later without electronic intermediation. That means ONLY PAPER CAN BE HIDDEN. History tells us all unhidden documents are eventually taken. So use your ebook to read the latest thriller/romance/pulp. But PRINT ANY BOOK YOU WANT TO GIVE TO YOUR KIDS.