Answer:
Gone are the days when nuclear families (mom, dad + one or more kids) are considered the norm in the United States. These days, different family types are not only common but also much more accepted than they were in the past. It's not uncommon to be raised by a single mother or be part of a mixed family. It seems more uncommon to live in a household where both parents are happily married, unfortunately, although many of those families do still exist.
What's even more interesting is that each different family type (there are six main ones that people agree on) has a unique family dynamic. Learning about your family type and thinking about how it affects your family dynamic can help bring you clarity if you're currently struggling with family problems or going through a big shift in your family structure. Looking at family type and dynamics can also give you a better idea of the strengths and weaknesses that your family is likely working with.
hope it helps