Not everyone develops as the charts tell us to. I believe that everyone should be treated as an individual, and everyone is special. There are also some ways and techniques that we can implement to work best with some of the special needs.
Special Needs training should include
How to support young people with special needs and their families
How to educate the entire parish with ways to support young people and their families
Evaluating your program to make sure it's welcoming to young people with special needs and their families