A lot of people do jobs where they do not agree 100% with everything that is asked of them. You either need to earn a living or you don't. I have never managed to come into the 'I don't need to earn a living' class. I have had to compromise all my life so that I could feed and clothe the children I bought into this world.
for rejecting parts, and one of them has traditionally been that nudity isn't justified by the script. Usually the actor doing the rejecting is the one who is being asked to appear nude - it's relatively rare for someone to refuse a part because there will be another actor appearing nude.
No doubt your son has his reasons, and that's that - it's his personal decision, and not really a subject for discussion is it?
IMHO i think its laurie53 been proud of his son & wanting to tell us all, there's nothing wrong there, well done to your son laurie53 for been approached for the position, If he felt uncomfortable with it then its really like FE stated "No doubt your son has his reasons, and that's that"