Redouane, hijab is perfectly acceptable in the US. As I said, we have laws protecting freedom of religion. It is only when those laws come into conflict with other laws, such as security regulations, that there are issues. One may be asked to remove niqab, for example, for a driver's license photo, but it is not an anti-hijab restriction. Again, let me be clear, hijab is perfectly acceptable in the US.
Mandi