> Spend too long abroad over a period of a few years and there's a requirement to "reapply" This applies to many other countries' so-called permanent residenci

> Spend too long abroad over a period of a few years and there's a requirement to "reapply" This applies to many other countries' so-called permanent residencies as well. It could be revoked if one spends a long period abroad, or collects a (local or foreign) criminal record, or otherwise gets in the granting government's bad books. They're permanent only in name.