Hiya I really want to know what is the actual age range or definition of young or early adulthood as I am really sure it is not from age 18-25 years old as 25 is still young, opinions and definitions of the human life stages should not be different or differ and also because early/young adulthood really starts from age 18 or 20 and ends when a person reaches their early 40s as that is when a person is considered to be middle aged or have reaches middle adulthood?