Singing lessons are great for children and young adults that have shown some skill in singing. It can be a great extra curricular activity for those that do have a bit of talent as they can improve their skills to a more advanced level and then will be able to do with it what they would like to.
Many singing schools offer the flexibility of getting into the school through financial aid and planning. You may be able to pay for your education as you go. Or, there may be loans and scholarship opportunities available. Grants are another route to consider.