I don't know, I feel like "38.57266, -9.19670" is harder to remember than "55 bridge street, foobar city, mexico". Maybe What3Words would be better: "///obscure.loftily.tasting", but it does not give any idea on locality.

We could use Google Plus codes instead. They look like 3W4J+622 Calgary, Alberta. The digits after the + can be added or removed to increase of decrease accuracy. They can but need not be also be replaced partially with a locality like Calgary, Alberta.