Hardworking son frustrated by siblings’ free rides from dad

DEAR ABBY: I’m in my early 40s and have been working hard since my mid 20s. I have a nice house that my wife and I are trying to pay off and two kids. We live pretty comfortably, but by no means are we well off. My dad is very well off, and he finances my older brother to live abroad. My younger sister, who still lives at home with him, is given whatever money she needs or wants. I am growing increasingly resentful about this situation. My two siblings, neither of whom work, are getting free rides from Dad.