(Concern) Orthodontics

The child is a high school student. There were no issues until middle school, but gradually one of the front lower teeth has become crooked inward. We are considering orthodontics, but I’ve heard that some teeth may need to be extracted for the treatment... The exact answer will come after visiting the dentist.

I think it's because there's not enough space for the teeth as they grow... I'm worriedㅠ