Brazilians love kids. They will go out of their way to please children, yours and everyone else's. In fact you will see children out and about a lot more than in the U.S. or Canada, even at restaurants, bars, or late-night events. Perhaps because Brazilian children are used to going out a lot more, they seem to always behave very well in public, playing with other kids or amusing themselves, with few of the hissy fits that sometimes accompany evenings out with North American youngsters. Traveling with children is a wonderful way to meet Brazilians, as people will be receptive, friendly, and inquisitive. Hotels are very accommodating but do usually charge 10% to 25% extra for children over the age of 6 or 12 who stay in the same room as a parent or guardian. In most hotels, the age limit and the amount of extra percentage charged can be flexible and is certainly worth bargaining over.
If a child is traveling with people other than his or her parents, or even if the child is only traveling with one of his or her parents, it is a good idea to have a notarized letter from the parents confirming permission for the child to travel. Buses and airlines sometimes demand such a letter before allowing a child to board. For even greater safety, have the notarized letter stamped by the Brazilian consulate or embassy. (Please contact the Brazilian consulate or embassy for further information.) Brazilians can be incredibly picky (in moments of frustration in dealing with Brazilian bureaucrats we have used words other than "picky") when it comes to paperwork; showing an embassy stamp makes a difference because that means that somebody in authority has already approved it.
Note: This information was accurate when it was published, but can change without notice. Please be sure to confirm all rates and details directly with the companies in question before planning your trip.