Well, US domestic flights do too (it's more generous than EU carriers I believe), but still limited. However, my point was more than during my time in various E

Well, US domestic flights do too (it's more generous than EU carriers I believe), but still limited. However, my point was more than during my time in various EU countries and Russia, this limit is much more carefully enforced, especially on crowded flights. Domestic US carriers never seem to enforce such limits for whatever reason, and it's a personal annoyance. I'm a nerd who follows the rules and packs as light as possible for travel, so part of this is just annoyance that others don't have the same courtesy, but it really is frustrating based on my traveling experiences to see how much more you can get away with on US flights in terms of bending the rules.