What do think about golfer's playing in the winter 30 degrees?

I've always said it's never too hot to play golf. I can play in 100 degree heat, no problem. But it CAN get too cold to play. If it's in the mid to high 40s, no problem. Once it gets below that, especially in the 30s or lower, no way. I tried it once. I got through 4 or 5 holes and called it quits.