A person with knowledge can guide and direct a nation.

Food and drink are need to balance because the all thing are need to maintain

I personally think that the age of the parents dont matter. It depends on if the couple is ready to take on such a big change in life. For example worrying about not just making enough money to feed yourself but also to feed the other little mouths that you created.

One could attain power and position by the help of knowledge, but the most important thing is having the respect for the knowledge one gains and the constructive usage of the same.