Think of all the time you could spend with your wife and kids instead of going to the gym (not to say physical fitness/excerise is bad). Show your dedication is to your family, instead of the gym. Your gym won’t feed or clothe you, but your family will.
Family is more important than lifting weights.
Essentially the guy posting this is saying “Hey I love the gym a lot, just imagine how much time I will spending there instead of with you!”