Think it is really wonderful when adult children care so much for their parents, that they plan (and pay) for a party to celebrate important anniversaries for them. Really cannot understand anyone saying they were upset or angry about it.
If people want to make their own arrangements for these special dates, then why do not they just go ahead and do it.
I was 80years old, just as lockdown was starting to finish. Having been so isolated from my family over that past 12-18 months, all I had wanted was to get together with my adult children and their families.
On the day, I was just told to be ready early in the morning by the daughter who lives near me. Then was driven some considerable way to a lovely pub on a river which had a large outside area, but part of that also covered pod.
On arrival at about midday, ALL my children, and their families, all eight of my g.children were there and even my own meal had been pre-ordered. One of my daughters had made a wonderful cake. I could not have had anything better.
It had been difficult for them to make those arrangements at that time, not knowing if it would be have been permitted to go ahead or not, not knowing what the weather would do (turned out to be one of hottest days of the year), all having to come from different places in the country. I appreciate those efforts so very much.