I would rather people learned the basics of RDBM's and concepts like "primary keys", "indexes". The kids these days depend on that stuff being hidden from them

I would rather people learned the basics of RDBM's and concepts like "primary keys", "indexes". The kids these days depend on that stuff being hidden from them by CPU/disk speeds and ORMs. If they can't get the concepts of a technology they are most likely to encounter in their day jobs, what chance do they have with Blockchain, considering that it is NOT a trivial thing.