This is the ancient Hindu knowledge about of phases in life...
0-7 : Physical Growth
8-14 : Intellectual Growth
15-21 : Emotional Growth
So only at 21, we can call someone an Adult. And then you can get married.
22-28 : Family Growth
29-35 : Parental Skills
36-42 : Stability
43-49 : Grandchildren
50-56 : Travel
57-63: Grandparent Skills
65-70 : Great Grandchildren
71-77 : Forest Life
78-84 : Forest Life
