You are right, age does not necessarily bestow maturity. However, in my opinion, it is not possible for you to have a 'wide understanding of magick' because you simply haven't had the requisite experience - which takes years. And, no age doesn't determine the outcome of your spells - I have never said that it did. However, someone with common sense and experience will understand that there may be no need for a spell at all. And also someone who was mature wouldn't demand an early answer from a total stranger. They would have the patience and manners to wait until their questions could be dealt with.