As someone who has been there, this old vet urges families in Taiwan not to make any blanket prohibitions. Old veterans feel they owe a great deal to their families in the mainland, and there's no harm in moving over there for a while to see how it goes.
以過來人的經驗，這位老兵勸在台灣的家人不要一味阻止，老兵會有這樣的想法一定是對大陸的親人有很深的虧欠，不妨先陪他回去試住看看。