Honestly, I do feel terrible for the poor Uncle if this is true.
I can understand from the Son's point of view that seeing his parent's "hoarding" savings that he could really use to keep afloat would make him feel spiteful...
But ultimately that is an incredibly selfish perspective - trying to guilt your parents into giving up the dreams they'd possibly spent years saving towards after all the years they spent putting them aside to raise you.
... And to punish them so harshly for refusing to give up their dreams is cruel. If I do have a child one day, I would hope they're not so self-minded.
Life is also cruel in that way. You finally manage to scrape away the time and money to do what you wanted and its robbed from you.