Passengers bring all their belongings onboard planes in the U.S., hoping to avoid checked bag fees. In some parts of the world, like Europe and Australia, that isn’t allowed. They don’t just limit you to a personal item and a carry-on bag, they actually weigh the carry-on – and you’re often limited to just 15.4 pounds (7 kilograms). That includes the weight of the bag itself! Here’s a passenger on Qantas’s Jetstar who sees staff bringing over scales to the gate to weigh bags, “you ruin broke [peoples] day for a living.” @zdiner #jet2holidays ♬ Jet2 Advert – ✈️A7-BBH | MAN 🇬🇧 Some airlines use these policies to generate fees, and ultra-low cost carriers are even known for paying out financial incentives to gate agents for catching passengers with excess carry on bags (who can then be charged premium fees for having to gate check those bags). The underlying policies themselves? Completely unnecessary. Safety justifications are obvious nonsense because U.S.…