The first thing you must consider is, if you have children, is my child old enough for a pet? Ferrets are fairly self sufficient. They do not need to be taken for a walk like dogs. They can be trained to use a litter box like cats. They do require a bit more interaction than cats. Be sure your child and the rest of your family are able to devote some time to interact with your ferret.
Ferrets are primarily social animals. They live for your attention. If you cannot spend at least an hour a day with your ferret, you may want to consider buying another one to keep it company. Ferrets love to romp and play with one another. Ferrets like to play, and they like to play rough. You can often see them dragging one another about by the scruff of the neck- do not be alarmed, this is normal. Unless they are drawing blood or screaming out in pain, they are most likely just playing.
If you decide that a ferret is in fact the right pet for you, be careful. That one cute ferret will eventually become two. Then the two will soon become three as their personalities are very infectious and you will simply want more and more. This is known as ferret multiplication. If you have a large cage and a loving family, 3 ferrets are just as easy to take care of as one. Make sure they are well fed, have plenty of water and love. A ferret can be the perfect pet for your children, just make sure your child is the right owner for a ferret.