"Do you have to bring travel size on a cruise" is an interrogative sentence that asks about a necessity or obligation. For instance, if one plans to board a cruise ship, it's common to wonder if toiletries must be confined to travel-sized containers.
The question arises due to the limited space in cruise cabins and stringent regulations imposed by the Transportation Security Administration (TSA). Cruise ships enforce these regulations to ensure the safety of passengers and crew. Travel-sized toiletries facilitate efficient packing, minimize potential spills, and comply with TSA guidelines.