Makes sense in New Zealand if everyone is getting fatter there too. They are more likely to be flying very long flights. Taking off (or failing to) while overweight would be a bad crash. Not likely to be a factor at landing due to fuel burn.
Domestic flights in the US or continental European flights are highly unlikely to be at max weight just because they will not be loaded with as much cargo and not need a full load of fuel.
Makes sense in New Zealand if everyone is getting fatter there too. They are more likely to be flying very long flights. Taking off (or failing to) while overweight would be a bad crash. Not likely to be a factor at landing due to fuel burn.
Domestic flights in the US or continental European flights are highly unlikely to be at max weight just because they will not be loaded with as much cargo and not need a full load of fuel.