Young Marriage Question

[NouveauFMIL]

Hi, I would appreciate any input or advice.  My daughter is 20 years old and is finishing up her AA degree.  We are a very close knit family and she has never been anywhere away from home for any length of time.  She dated her boyfriend in high school since she was 15 and he was 16 and they recently got engaged and want to get married in December.  Her now fiance  finished his schooling is stationed for 2 years at a location where he is doing his job.  He is located about 7 hours from where we live right now.  By the time they get married, he would have been in the service for a little over a year.  He has been promised to stay at his present location doing his job for at least 2 years and has a term of 5 years.  Their plan is to get married in December, and live off his pay while she continues to go to school full time to finish up her 4 year degree.  They want to be married because they miss each other being far apart and want to be together.  As parents, we want our daughter to be happy and support her decision, but also from experience, we know that it is not going to be easy.  Being away from home for the first time as a married woman, being a new wife in an area that is totally new and not having any family around other than her husband when she is used to having family around, being a full time student, living off of one income.  I don't think she realizes what a culture shock it is going to be and once the novalty of being married wears off a little bit, she may realize that what we were saying was true.  Right now all she can see is that she is in love and wants to be married so they can be together which I understand but am concerned for her.  If anyone is going through or has gone through a similar situation which I'm sure many have, I would appreciate anything you can offer..Also, if you are a young wife who has recently been married who basically come from a similar situation I would appreciate anything you have to share also.  Thank you so much.