If he truly was, his son wouldn't have had to wait until 20 to come-out. ::)
Figuring out who you are is a tough rough for most people. But trying to figure out if your gay is really rough. Some people who are gay, don't want to be gay. But they know that trying to be straight will be misery and most likely a suicide.
A supportive parent stands by their child through all these struggles and is there for them with open arms when they make it to the other side.