A very common occurrence in border communities!
........I knew a guy who was from Sault St. Marie, MI, and whose father worked in Sault St. Marie, ON. He had to cross an international border 10 times a week. Certainly would be a hassle trying to establish citizenship that often!
I grew up along the CAN/US Border and most of the time no ID was even requested….neither a driver license or birth certificate....let alone a passport.
The border was there but it didn't interfere with your life.......you might be back and forth a couple of time a day. The community on the US side had a McDonalds before we did and it was quite common to load us kids in the car and head over for a McHappy Meal or for a treat in the evening. We had the hockey rink on our side and our minor hockey team was about a 50/50 split of US/Canadian players. When we had practice at 7am on a Saturday morning they were here too except it was 6am to them……..the Atlantic/Eastern Time Zone ran down the middle of the river. Even municipal services such as fire protection and the water supply were shared.