My 6-year-old son is bi-lingual. He speaks Hebrew and as he has an American dad, he speaks English as well. We recently moved to the USA and his English just started to emerge and he is doing well even though there are still language gaps compared to his peers. I am debating if it would be okay to hire a Spanish-speaking Au Pair and ask her to only speak Spanish to my son? Will it be too much and can delay his English advancement? She has poor English and I'm afraid my son will pick up on her mistakes so I'm thinking maybe I should ask her to speak her native language ( I'm, his mom, not a native English speaker either)
Would love your input. Thank you!