Not only Zimbabwe, but other countries are having a very hard time economically, Venezuela and Argentina among them.  From what I've read, tho, people in those countries are using currencies from neighboring countries or the USD for transactions.  They haven't really been turning to cryptocurrencies as much as people might have hoped.

Bitcoin and Eth might not be used as money in every day transactions, but they're both in the mainstream consciousness thanks to media coverage, and that's progress from just a few years ago.  In 2013-14 when bitcoin was going exponential, that's when there started to be a lot of stories in the financial press and now you hear a lot more about bitcoin and even altcoins. 

It's going to take time for mass adoption to happen, and it may *not* happen if fiat stays viable, which it likely will.  There needs to be a very good reason for people to want to own and use crypto to pay for things that they could easily pay for with cash.