Can I drop the friend off there, to cross the border on foot, without me dealing with the border control guards of either country?
Will the Canada border guards have a problem with someone arriving on foot? (Assume they would have no problem if having driven through: valid passport in hand, no criminal record, cash in pocket, hotel reservations, history of previous visits, etc.)
If Canada refuses entry, can I easily retrieve my friend after coordinating by cell phone?
If that works and Canada allows entry, what are the transportation options on the Canada side for my friend headed to downtown Vancouver BC? Public transit such as bus, light rail, heavy rail? Private bus company (equivalent of Greyhound in the US)? Taxi? Uber/Lyft? My friend has more time than money, and is hale and hearty.
I am aware of the Cascades train service by Amtrak. But let’s ignore that option for the sake of this Question.