I've never seen pawpaw as a local thing in southern Ontario and southern B.C., where I've lived for quite a number of years. They are the warmest regions of Canada. And I've eaten a broad range of things.
Saskatoon berry is native to some Canadian prairie provinces. But even though it's grown locally here, it still is abit more expensive than blueberries (from British Columbia. Blueberries don't grow in the prairies nor blackberries.). So having a festival for Saskatoon berry may not be financially sustainable and it's not harvested in huge volumes like other temperate climate berries. But we treasure it here, for pies ...and for home, when we make a lovely red wine Saskatoon berry sauce for seared bison. It's delicious, elegant....and local. Sometimes gourmet local ice creams use it for unique ice cream. To me, it's local and special-exotic still, because it's done so infrequently....like lichee gelato.
I understand for marketing purposes it's renamed as juneberry in Minnesota, etc. http://www.cbc.ca/news/canada/saskat...-u-s-1.2744433
What I'm trying to say...that sometimes locals who have lived for 2-3 generations in the same region, take for granted too much of their local uniqueness and local natural food abundance, that it becomes ho-hum unless they have lived elsewhere in the world for several yrs.