I went through Zimbabwe a while ago for work in Africa and I did not see anyone accepting bitcoins as a payment option. I
used the South African Rand ZAR in Zimbabwe that I exchanged on the airport in South Africa. I think these people will store
their wealth in any other currency other than their own local currency {Zim Dollar}
Bitcoin might be their best bet for a store of value at the moment, because it is not depreciating in value like most of the
other fiat currencies.
The US Dollar is not as volatile as Bitcoin, so it might be better suited for local merchants as a currency.
It is possible that this is the beginning of interests for
BTC in Zimbabwe,I am not surprised that you not see any store/service accepting
BTC because in much more developed countries it is not easy to find someone to accept
BTC.Africa is on this point far behind all other countries,only one
BTC ATM all over the continent if the data is correct on this page :
https://coinatmradar.com/countries/American Dollar does not solve their problem since it is not their currency(they can not print US dollar) and they import 10 million $ every week,the question is how long it will work.For ordinary people that certainly does not work and they are turning to
BTC.