Ah, that begs the question: what do you do think is best for him? Language development? Social skills? Ability to follow teachers and do well in class? Easy fluent interaction with his own family members?
that won't happen if you don't use ASL and if you mainstream him. Always keep one thing in mind - speech skills does not equate fluent hearing ability. And the more he's isolated from easy fluent communication, the more it will have an impact on his psyche and the less happy he will become.
That's why I'm saying if your baby's happy, that's a good thing!
Please start learning and using ASL ASAP.
