I agree Beth Sarim , it is evident that so many of us, myself included, really feel deeply the deprivation we suffered as children, not allowed Birthdays , Christmas etc, not just our own, but the joy of giving to our friends too !
It is an Evil and totally unwarranted Abuse of Children. It is Stealing their Childhood. Just as much as more serious abuse does.
It amuses me how they have to hide what it says in Job about the family getting together for his children's Birthdays, I know most translations do not explicitly say these were Birthday celebrations, because it cannot be known for sure what they actually did on those days, so the say " Birthday" would be to put a wrong vision in the mind of the reader, perhaps. But what else could it mean " each on his own day" or whatever the phrase is ?
So, not only are Birthday Celebrations not condemned in the Bible, the Org does mental gymnastics to excuse an apparent condoning in Job. Miserable, joy hating bastards.