Yes, baby sign language classes are worth it! I did baby sign language with my son. We started when he was 6 months old. It was so helpful that I wish I knew about it for my daughter, who is my first baby.
Communication is such an essential part of a healthy life that anything enhancing it is worth it. You can visit Tera Warner’s website as regard to the importance of communication on a broader level.
This is an exemple of some baby sign language classes in English and in French.