Anyone can practice magic if they are willing to spend time learning.
Practicing the craft involves understanding that everything in this universe is connected, and your just a grain of sand, but at the same time, you are very important grain of sand and you can influence the other grains of sand around you. The Craft is not to be taken lightly. Understand that this must be your own decision and no one else's.
You can find free books on line. Go to the public library and find the new age/ pagan/ wiccan shelves, and pick up what you can on pagan history and witchcraft.
Hope this helps.
Love and Light,