Quote from denner:
You hit the nail on the head.
Phil also has to battle with arthritis, which for a professional golfer, could be a career ender. My guess is that he had one foot out the door already and the tax hit was all he needed to say that he will play a very limited schedule or possibly retire.
Those guys travel so much that unless they take their kids on the road with them, they might be away from home for a month to six weeks at a time...
Yep, and he could play another 5 years on the regular tour -- make a lot more $$$ -- but miss his kids growing up which he could never get back. Retire now with quality family time and he can always go back and play the Champions Tour in 10 years or so if he wants/needs more $$$.