Are you planning a family cruise in the near future? If so, you've probably started reading online reviews. And in your reading, you've probably noticed a trend: Tons of complaints about kids on cruise ships. Many adults are complaining that kids running wild are making cruising uncomfortable. But does this mean that you can't sail with the kiddos? Of course not. Several cruise lines are kid-friendly, and Carnival and Royal Caribbean are two of those. Which is the best for your babies?