Answer 1

If your teacher in school wants to put it in their test, you need it.

For writing programs, it won't matter much.

After a while, you'll pick up these 'fun facts' automatically.

Answer 2

It's not necessary to remember.If you code in python you will automatically get familiar with all things.

Answer 3

Not knowing how, why or who made python won't stop you fr mom being a programmer, but it helps to know