Many people meet their future spouses in these schools of higher learning. The less preferable option would be to have them stay home and attend the local college or university. Develop spiritual support with other Catholic families in the community. Meeting once or twice a month with other Catholic families offers spiritual support to parents as well as to children. The prayer support from such a community is invaluable.
Some parents desire specific advice in raising their children.
They want their children to remain pure for the Lord and yet not remain isolated. Teens especially crave friends. Here's another list of suggestions for that purpose, but without any particular order. Through home education, spiritual community, or church youth groups, a child is exposed to other kids. These other children are basically good choices because they are more likely to have similar spiritual goals and their parents are usually strong in the faith.