This is generally a good advice, as a bank typically has your money and lose nothing being slow or painful.
On moving to foreign countries while keeping banking access, it's such a world of hurt.
Some banks will straight stop your account and flag it the minute they understand you've been out of the country for any specific length of time (from 1 full month to 6 months depending on the bank). Many banks will just not allow a foreign resident to keep an account.
Citibank in Japan has the funniest rule: you have to receive in person a letter sent to your residency address every month if you intend to keep your account alive. Failing to do so for whatever reason automatically locks the account and you have to come to them to prove you still meet their requirements.