Getting Ready

You aren't going to be around to pamper him anymore. So he needs to be mentally prepared.

Allow him to do his own chores a few weeks before he leaves. This might even be something simple, like doing the laundry or making a meal. This way, he will start to take on more responsibility.

Help him pack up and remember to include elements that remind him of home like family pictures, a sports trophy or two, music compilations, etc.

Once She Steps Out

A good thing would be to accompany her to her new place of study or work. Help her find her way and settle in. Explore the new city together, so she knows where to get the essentials from.

Encourage her to get to know people from the same country, state or city. It will make her feel better and she will slowly start to network with other people.

At the same time, teach her to be wary of the people she meets. Tell her to first get to know a person before building a strong relation.

This would also be a good time to alert her to vices like drugs and loose sexual relationships. Let her know that you trust her but want her to think before she acts.

Tell her that it is alright to enjoy but studies come first.

If she needs to rent out a place, help her settle in. Make sure to do a background check of the locality and the residents.