I'm just playing devil's advocate so....what if the hearing parents never learn more than a handful of signs?
All for a better reason for the child to go to a school where he/she has full access to language.
If my brother was kept in an oral-only program all his life when he wasn't able to pick up on spoken language and my parents not knowing sign even to this day, he wouldn't be where he is now. He is VEY VERY lucky someone at my public school was able to recognize that he wasn't thriving being mainstreamed with little access to everything before it was way too late like it is for so many other deaf kids of parents who don't sign.
In the home, I can't do much about what goes on but we, educators, have the power to provide an environment that is accessible for the children. If the child doesn't have access to muich both at home and at school, iam sorry to say..the child will have serious deficients in their language and struggle with literacy skills. That is what has happened to so many of our students who got referred to our program at a later age. They do not even have a first language at the age of 9, 10, or even older. If they do, it is usually very very weak. Don't we want to prevent that risk for all children in the educational setting?
Wishful thinking, I wud love for the children to have full access to language at home but in reality, it hasn't happened. The lucky few have parents who take the time to learn sign language but even if they aren't fluent, I see the difference in those children's language, cognitive, and abstract thinking than those who don't have access to language at home.
The point is, as an educator, I refuse to take risks like these with children's language like that in the school setting. That's my belife and philosphy..the educational setting is there to meet the children's needs not vice versa but too often it is vice versa for many mainstreamed deaf children who do not have full access to everything that is happening around them at school.
Again, I am using my pager so if u see a lot of typos, my apologies.