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Twenty years ago families used to have 2-3 generations. Frequently fellows didn't know their grandparents. But according to the latest researches families will consist of 3 or even 4 generations. Here are some predictions:
1) People will live longer and, as a consequence, (will) know even their grand grandparents
2) Families won't have a lot of children. As a result, children won't have cousins
3) Children will grow isolated from other ones, and that will make them selfish
4) Couples will divorce and marry, so many children will get stepmother or stepfather
5) There will be a lot of children, which marry and return to theirs families
6) There will be more single-parent families

Twenty years ago families used to have 2-3 generations. Frequently fellows didn't know their grandparents. But according to the latest researches families will consist of 3 or even 4 generations. Here are some predictions:
1) People will live longer and, as a consequence, (will) know even their grand grandparents
2) Families won't have a lot of children. As a result, children won't have cousins
3) Children will grow isolated from other ones, and that will make them selfish
4) Couples will divorce and marry, so many children will get stepmother or stepfather
5) There will be a lot of children, which marry and return to theirs families
6) There will be more single-parent families