NB: I'm male and have NC as likely very identifiable. Long-term poster.
I have two adult children - 24 and 20. The eldest lives abroad.
I have been very low contact with my parents for quite time, perhaps three years, due to systematic extensive emotional abuse. Mother is a narcissist and father her enabler.
I see Father's Day (and Mother's Day) as a celebration of upbringing and a way to say thank you. I had zero intention of buying a card but my wife and DD(20) badgered me continually until I gave in yesterday.
I received nothing from either of my children - the eldest is somewhat understandable due to shitty postage. Younger child lives a mile away from us, and no reason given to either me or my wife.
I was very upset about it last night and am despondent.
My DW says I'm hypocritical for not wanting to buy my father anything but then complain when my children don't bother.