Generally it is best to tell them right away. Even though teens seem much more advanced in their social skills, they may worry a lot about making friends and fitting in. Be sure to visit their school and check out local activities and employment opportunities for young people. Communities have their own culture and way of doing things, and this is often reflected in the way teens dress. How they look is very important to teens.
Parents also can help teens by paying sincere attention to their feelings.
Accept your teen's feelings without getting defensive or lecturing. Researchers tell us that adults and children need time to adjust - often as long as 16 months. For some families, the most stressful time is 2 weeks before and 2 weeks after the move. For many families, however, the time of the move is one when everyone pitches in and works together as a team. It is only a month or so after the move that the reality of friends and places left behind begins to sink in.