Is it?
From what I remember in Alberta, retailers don't take returns. They are accepted at specialized bottle depots. Do we simply rename The Beer Store to The Bottle Store?
You're right, its less retailer-based that I remember, though retailers do have a significant role in the two largest provinces.
BC - A mix of retail and dedicated depots - London Drugs has a large take-back program in Vancouver.
Alberta - All depots, fairly large numbers.
Sask. - All depots - 4 or 5 in Regina
Quebec, most robust return network by far, required to be 1,500 locations by Jan. 1st 2025 - includes retailers and free-standing depots.
NS - All Depots
PEI - 10 Depots province wide
NB - Depots (4 in Saint. John)
NFLD - Depots ( 8 in St. Johns)
***
Conclusion - Quebec and BC both have Recycling bodies mandated to set up convenient return locations, there are minimum requirements, but they then have the flexibility to set up their own locations, or contract for them with third parties including retail.
No other province appears to impose mandatory retailer participation other than by provincial liquor monopolies, in some cases.