What is the average males focus at age twenty?
Please rephrase your question. are we talking about with the mind or what?
The average height of males very from person to person and age to age. Males can range from almost any size during and after puberty, some can be in the five feet, some six, and pretty much anything above, below or in between. So, their is no real average height for a male during puberty. So really almost any height is normal during puberty, it's all about the individual.
As everyone will soon tell you, everyone is different so no specific age can be determined but there wrong. It is at the conclusion of puberty that males stop growing. Unlike females, males finish 'maturing' at the age of 18! This is a specific guideline and it should be noted that males usually stop growing before they are fully mature, but as a term, males stop growing at 18 years of age.