what age is better to give a birth?

From a purely biological standpoint, 20-40. But we all know that life doesn't always make things that simple. IMO, if you can still conceive, then it doesn't matter what age you are. Mother nature will decide when it's too late. Hope this helps.

When a person is mature enough and able to financially provide for their baby.

5 is the best age.

I'd say between 20-35 for a woman.

If your male, no age is xD