Why Indian credit cards are not valid in Nepal and Bhutan?

Related questions

1. What currency works in Bhutan?
2. Is Travelling to Bhutan expensive?
3. Can we take our car to Bhutan?
4. Does SBI debit card work in Nepal?
5. Do you need passport to travel to Bhutan?
6. Can Indian citizen buy property in Bhutan?
7. Is there malaria in Bhutan?
8. Can you use Indian rupees in Bhutan?
9. Can we go to Bhutan by train?
10. Is Bhutan cheap for Indians?

Tags

1. #rupees
2. #issued
3. #resident
4. #respect
5. #permitted
6. #liabilities
7. #reserve
8. #bhutan
9. #origin
10. #indian
11. #valid
12. #organisations
13. #india
14. #credit
15. #issuing
16. #nationality
17. #issue
18. #banks
19. #cards
20. #created
21. #payment
22. #nepal
23. #international