as a vegan and and a golfer myself I understand the struggles. As far as vegans are concerend it's not just using things made from animal skin you would be shocked at how many materials have an animal derivitive. We have to look into it all, it goes as far as the types of materials used to give certain foods their texture (i.e. we dont eat starburst as they use a product similar to gelatin to give it the gummy texture that uses animal in one form or another in the process).
Veganisim is a PERSONAL lifestyle choice so please dont tell this FATHER to feed his SON chicken and fries as he's not telling you to take YOUR son to a different church or put them in a different school because he doesn't agree with your personal views and values.
I'm on the quest of finding as much vegan friendly golf stuff myself, I only use cloth carry bags which is a big part and my gloves i'm still running through my sciflexes from footjoy that were already purchased before I made the switch from vegitarian to vegan.
I will mark this thread and as I find items I will be sure to share them here!
Hope things are going well on your quest
ZiA