I don't know about pooling tips, but I do remember years ago on our first Celebrity cruise seeing an envelope marked, "Chief Housekeeper." When we asked our steward about this "person" (as we had never tipped, seen, nor heard of such a position on any other line), she told us that the steward would have to come across with the 75 cents a day out of her tip if it wasn't provided by the passengers. Don't know if that was local extortion, or the line's policy. Needless to say, we weren't going to go broke for providing someone $5.25 per person (less for kids, ROTFLMAO!!), paid it and have done so since. If the tips are pooled, then such an arrangement would not have been in place. Perhaps on lines where they "...charge your shipboard account $10 per person per day, 'for your convenience,' " some kind of system comes into play where everyone gets a pro-rata share of the action. Personally, I eschew such practices. Just my two cents (per person, per day, regardless of age)!