Why is IPv6 not used?

Related questions

1. Why do we use IPv4?
2. Is IPv4 the same as IP address?
3. Should I use IPv4 or IPv6?
4. Is IPv6 faster than IPv4?
5. What is IP URL?
6. What is WAN IP and LAN IP?
7. How is a WAN created?
8. How is IPv6 better than IPv4?
9. Why is my IP address different from my IPv4?
10. What are the disadvantages of IPv4?

Tags

1. #already
2. #other
3. #matured
4. #driver
5. #enough
6. #major
7. #protocol
8. #comes
9. #address
10. #extending
11. #exhaustion
12. #specification
13. #develop
14. #lifetime
15. #internet
16. #future
17. #drawbacks
18. #needs
19. #scale