I've read a bit about what Japan did in relation to Bitcoin, and I've read a bit about what El Salvador is proposing to do in relation to Bitcoin, and I've read

I've read a bit about what Japan did in relation to Bitcoin, and I've read a bit about what El Salvador is proposing to do in relation to Bitcoin, and I've read a bit about what the term "legal tender" means, and honestly I can find almost no points of similarity between those three things.