Why did adam smith advise nations to allow their economies to remain as free as possible from government interference?

Adam Smith advise nations to allow their economies to remain as free as possible from government interference because the french physiocrats denied that manufacture and trade produce wealth. Thank you for posting your question. I hope that this answer helped you. Let me know if you need more help.

He made the polygraph too,but thomas edison was not falsely credited for the light buld