My brother went to school in Indiana and met his wife at a young adult conference in Canada (she's Canadian). The Young adult social scene is so much more than the branches, they normally have more stake and regional activities when you are outside of Utah. I grew up in Maryland and while I did meet DH here in Utah, I dated alot back East because I participated in all those fun activities and met alot of fun people that way. I got married at 24 and took time off for a mission so there was a lot of dating and fun along the way.
Hopefully she'll meet some fun girlfriends in Institute that want to do things like that with her. Really encourage her to make some good girlfriends in her ward.