To make a long-distance relationship work, lovers need to trust each other and be able to remain faithful.
Nowadays, many means of communication exist and allow a long-distance relationship from the moment when the feelings are mutual and really very strong.
Lovers, thanks to webcams, can see each other as if they were close to each other. Sometimes, in fact, certain couples prefer to live separately and at a distance because they do not yet feel ready to live together. They are also afraid of not being able to support each other.
So long distance relationships can allow them to feel a certain lack of “the other,” of his half in a way. Some married couples are, by professional obligation, separated but find themselves at the end of the week, with their family and like to live that way.
It is therefore really possible, provided they want to, to live far from each other if they really want to, even if they have family lives and children as well. It's just a matter of will. Use the technology available to you and be patient.