If you are considering getting a rabbit for the first time, there are important things you should know about and think through:
A rabbit normally lives for 6-13 years, and it does not handle changes in its environment very well. Like most other animals, its not recommended letting the rabbit go through big changes like getting a new home several times throughout its life. Keep in mind that the rabbit wants stability most of all!
As with all other animals, a rabbit should never be given as a present, neither to children or grown ups. It needs decent care, but none the less lots of attention from its owner if it doesn´t have a rabbit companion nearby. Children often grow tired, and adults who didn´t want a rabbit in the first place may not have the time to give it the amount of attention it should get. If the rabbit is given to a child, must always a grown up person agree to make sure it gets the care and amount and type of attention it needs - and also be ready to take over the responsibility if the child grows tired.
Keep also in mind that a rabbit can not be left alone for several days without someone looking out for it, giving it fresh water, food and clean up the cage or toilet and preferably spend some time with it. A rabbit needs to spend some time outside a small cage to stretch its feet and keep its muscles in shape while its owner is on vacation...
If you are planning on letting the rabbit live more or less in freedom inside your house, some planning, adjustments and patience is necessary. The main challenges are usually related to the rabbits desire to chew on inventory and cleanliness. You need to spend some money on equipment you can use to secure electrical cords and cables and other vulnerable inventory your rabbit may find delicious to chew and dig on. Rabbits desire to chew - on what and how often - may vary from individual to individual, but be careful to secure inventory none the less! If the wrong cord gets clipped, your rabbit may die and you can also risk a fire. In the long run it also gets expensive to replace cables and cords - and perhaps also the electric appliance if only the cord can not be easily replaced.
A rabbit is not necessarily the most expensive animal to keep, but veterinary bills may be an issue if your rabbit becomes ill. Make sure you - or the adult responsible - can and are willing to handle such expenses before you choose to bring a rabbit home with you.
Some people discover after they have brought their rabbit home, that they are experiencing allergic reactions because of the pet. Make sure you and other family members does not react to rabbits or hay/bedding before you decide to get a rabbit as a pet - there are too many homeless rabbits today as it is, so be careful not to make the problem bigger by getting a rabbit without carefully thinking through and research whether a rabbit will function as a pet in your home or not.