Do not start before age 10 1/2. Starting earlier, when bones are still growing, can cause permanent foot damage. Some girls need to wait until 12 or 13, depending on their development.
Train for at least two or three years, averaging three or more classes a week. Ideally, you should have several months of specialized prepointe classes to work on the muscles and techniques specific to pointe.
Possess feet capable of pointe work. Students with very low, inflexible arches may not be able to balance en pointe correctly. At the opposite extreme, students with overly flexible feet and ankles may "roll over" en pointe unless they are very strong and well trained. Working closely with a teacher and practicing appropriate stretching or strengthening exercises outside class may be necessary for both these foot types.
Develop sufficient strength to do sustained work on demi-pointe in the center, maintaining correct form. An experienced teacher will be able to judge a student's ability to maintain correct form throughout a class. Parents and students should not attempt to override a teacher's judgment or search for a teacher who will let a student go en pointe early.