A Monster?

Riddle: What walks on 4 feet when young, 2 feet when it's an adult, and 3 feet when old?

Answer: A human! A baby use it hands like legs, a adult walks on to feet, and a old person uses a cane to walk so it is 3 feet.

Source: https://www.riddles.com/index.php/10471

What walks on 4 feet when young, 2 feet when it's an adult, and 3 feet when old? — A Monster? by Chayes Fong Yu Ze v1.

Riddle: What walks on 4 feet when young, 2 feet when it's an adult, and 3 feet when old? Answer: A human! A baby use it hands like legs, a adult walks on to feet, and a old person uses a cane to walk so it is 3 feet. — by Chayes Fong Yu Ze v2.