Why is it confusing to create an Instance of User to create a User?

# Simplified User Class without models

class User:

    def __init__(self, username=None):
        self.username = username

    def create_inst_user1(self):
        # returns obj instance of itself
        return self

    def create_inst_user2(self, username):
        # returns instance created, using name given.
        return User(username)

    @classmethod
    def create_class_user(cls, username):
        # returns the instance it created from name given.
        return cls(username)


user_1 = User() # instantiated, no username defaults to None
print('\nuser_1: {}\nObj: {}\n'.format(user_1.username, user_1))

user_2 = User('Me')# instantiated with Username
print('\nuser_2: {}\nObj: {}\n'.format(user_2.username, user_2))

user_3 = User.create_class_user('Another Me') # works, with instantiating
print('\nuser_3: {}\nObj: {}\n'.format(user_3.username, user_3))

# user_4 = User.create_instance_user()
# wont work, calling instance method from Class

# Lets try to MAKE it work though
# user_2 is instantiated from User Class so maybe we can....

user_4 = user_2.create_inst_user1()
# Basically returned user_2's name, always will.
print('\nuser_4: {}\nObj: {}\n'.format(user_4.username, user_4))

user_5 = user_2.create_inst_user2('Another Instance Me')
# This technically worked, but we had to instantiated a completely different
# object just so we could create an object with a different name? Ew.
print('\nuser_5: {}\nObj: {}\n'.format(user_5.username, user_5))

# ---- OUTPUT ----
# user_1: None
# Obj: <__main__.User object at 0x000002A206746DA0>


# user_2: Me
# Obj: <__main__.User object at 0x000002A206746EB8>


# user_3: Another Me
# Obj: <__main__.User object at 0x000002A206746EF0>


# user_4: Me
# Obj: <__main__.User object at 0x000002A206746EB8>


# user_5: Another Instance Me
# Obj: <__main__.User object at 0x000002A206746E80>