Well, you could argue that's most of the point.

Remember, though, there are funerals where only one person attends. And publicly acknowledging one's loss - even if it only consists of going to a building with strangers and posting an obituary - can be one of the most important steps in processing grief for some people.

+1

You're showing the other grieving people that you care about them

It's certainly a large part of it. There was a recent Cantonese movie that featured this as one of the themes, it's well worth a watch.

https://en.wikipedia.org/wiki/The_Last_Dance_(2024_film)