Can you go back to tae kwon do after 13 years and retain my belt?

Answer 1

That is going to depend upon your instructor. If you have not practiced in thirteen years, it is going to be difficult to pick up where you left off. You would be better off to start over. If you pick things up quickly, you are likely to get promoted quickly.

For example, in one particular community in Oregon three children about 8 - 10 years old quit Taekwondo when their school changed locations. They had had attained the rank of blue belt. About a year later, when a new school opened in their community, the joined at the rank of white belt, but three months later, at their first belt test, they were awarded green belts.