I use sign language and keep talking to him.

Thank you for sharing the info.  I never think of a nine months old baby can start learning violin.  My son is almost two.  I think I should start looking for a teacher for him. 

I will try it tomorrow.  Thank you so much.

The caregiver told me that I should use my mother tongue to teach my son and let them to look after the other language.  My son is two now.  He can speak and understand two languages.

I always think that this is better to have the first kid before 35.  I have my first one at 32. 

I think it depends on the kids.  But in general, I believe the earlier the better, as this is not only for learning, but giving the kids to have the opportunities to start interacting with others sooner.

Thanks for the info.

Do you know how much do they charge?