Some people are still old fools at the age of 50.

Some people have experienced many vicissitudes at the age of 20.

Some people are unemployed at the age of 40 and still dream of finding a boss to support them for the rest of their lives.

Some people know at the age of 20 that they must accumulate their own means of production and business model in this life in order to succeed and achieve freedom.

So people are different. The gap between people is greater than the gap between people and dogs.