Great question, and one we've been toying with! The question to ask is do you think (s)he will benefit from socialising with others? If (s)he's shy this could be a good thing, yet others in your group may tell you it's better to wait until they are 4 so they get used to being away from you before Kindergarten. There's no right or wrong answer, suggest just trying it and see how they react. Although, there's a chance that (s)he may get sick more often too.
I think you should do both. Frankly childcare / preschool and enrichment are different things. If she likes music then I would def send her for music classes.
Anonymous