The post office is where you get a lot of those fishing licences and things, or at least we did. I don't know what the new system is, but at one time you went to the Main Street post office if you wanted to buy coins, get something from the Canadian Mint, or get a parcel or a package, a postal order, or a fishing licence. Any of those things you could have done at the main post office.
Whether you can still do that today is beyond me, but there are perhaps other services government could look at that could be offered.