These are more like scheduled rituals than holidays for me

I guess at some level that's sort of all a holiday is, but I think there's some amount of "taking time away from work and tedium" implied by the word holiday

I also think there's a sort of shared cultural meaning being lost from holidays as well. Is it really a holiday if no one else observes it, or is it just a personal thing?

Holidays are something that people share with one another, with their families, friends, their neighbors, etc

Maybe I'm being much too pedantic about what is ultimately just a list of days that this person has scheduled to take care of things that are important to them