Here is why I have 4 country IDs and why I'm struggling to "use" them.
I lived in Germany for 5 years and worked in Switzerland at the time. My commuite crossed the Swiss/German border 8 times every day.
Afterwards I lived in France (same region) and crossed the border 4 times but this time (by train) France, Germany, Switzerland).
Every day!
On my commute I want to use my content that I acquired over many years (1200 shows and movies, 20000 songs, 120 books).
While working for the same Swiss based company (it's in Basel, pretty much everybody in that region has the same issue plus other dense European regions) I was transferred to the US for five years and traveled in NAFTA and Central America all the time plus back home frequently, visiting the above mentioned countries in fast intervalls.
After returning I had my constellation 1 back, for the last years I moved to Switzerland and visit my family in Germany every week plus travel to Italy almost every weekend.
"Tough live" one might say - I know how blessed I am.
But what Apple doesn't seem to understand is that increasingly more people will live and move like that or even more complex.
Based on the ToS Apple asks me to own 10+ country IDs but switch them 4-10 times every day - worse even: oly use the content that was purchased in a particular country while crossing the border 4 times within 50 minutes morning commute and only use my US bought content when back on business trips there??!??
Give me a BIG ... break!