If you are refering to spell on this site then a lot of them don't because of inexperience members making spells for fun. Kind of like the members in Spell Casters. No one is born a witch either, but they maybe born into the cult and have family who have been teaching them for years. You should do the basics if it is apart of your practice. Basics include: Meditation, Visualization, Centering, Grounding, and more! Plus anyone can cast a spell. It takes practice. Spells are meant to help not to do what you want. It is like a prayer. Plus I think your refering to candle spells and not xandles spells. Items in your spells make them stronger. Plus writing them yourself makes them more powerful.