Originally Posted by pound cat
It's obvious that Federer feels the cold more than most people do at the same temperature, (See the thread below about how he asked the young boy at the net if he was cold and would he like to put on a sweater.) He probably does the same thing with his own children and Mirka. Just because he is cold he assumes everyone else should be cold.
Grandparents are also notorious for asking their grandchildren if they are cold. Some people are just cold blooded.
Yet, Federer has played and won dozens of matches at Wimbledon in frigid temperatures wearing nothing but his thin polyester polos for years.