>My mom in law decided to start an email account for our daughter when we told her that we were pregnant. 

That is a great idea and I think your daughter will appreciate it once the time comes. I wish ,ore people would add this kind of content onto blockchains too, just to add an additional amount of protection for the words. 

> I don't include her in it much because I'm extremely protective of her online identity at this age, but it's something that will far outlast me, carved in the blockchain.

I wonder how protected the identity really is, if you consider that Facebook and Google record everything through a thousand different APIs. I suspect that while identity might be less visible on the surface, everything is still available - since most people save their images to google and their communication on centralized apps.