Should a 2-year-old child wear a mask?

Kids under 2 don't need a mask. But it's mandatory for everyone else.

Far as I know the CDC guidelines recommend for children 2 and up to wear mask. But the restrictions are changing from day to day. You may want to call the museum directly. If your child has an underlying condition, definitely should wear a mask. As you know, not everyone is concerned about the well-being of others.

Yes. They mandate children 2 year olds and above to wear mask. But they were not too strict in enforcing while you're inside. But masks are to be worn to enter the museum for sure. They even provide masks.