[Python] Why use classes over a function that just returns an object? [duplicate]

So I can make a function that does everything that I class can do (I think). So why would I ever use a class? (Yes this is just an example but you could also put like functions or anything else you want to into a dictionary/object for you JavaScripter's out there)

class User:
def __init__ (self, user_id):
self.id = user_id

user_1 = User("1")

def makeUser(user_id):
return {
id:user_id,
}

user2 = makeUser("2")

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