Hello NYCdad,
I don't have kids, therefore i can't really help in regards to kids. But the expat community on island is very diverse and welcoming, there are people from all over the world, and that's one of the things i most love about living here.
I would definitely consider moving to Provo, but maybe not to other islands, as these are more secluded.
Let me know if i can further assist you!
joana
myseastoryblog.com