it wouldn’t do somebody any harm to do something
From Longman Dictionary of Contemporary Englishit wouldn’t do somebody any harm to do somethingit wouldn’t do somebody any harm to do somethingspoken used to suggest that someone should do something that may be helpful or useful to them It wouldn’t do you any harm to get some experience first. → harmExamples from the Corpusit wouldn’t do somebody any harm to do something• It wouldn't do you any harm to get some experience first.