Can someone explain this to me?

Can someone explain this to me?

You cannot tell a person they are overweight nowadays :) You can call any luggage whatever you want though. Yet :)
She is lucky she not in Japan.
We say you are fat if you are fat. Fat no good. People know this.
Strict rules on how much baggage weight can be carried, vs. no rules on how large passengers can be -- two different operations and rule sets.