After my colleague's mother died, how should the boss Jianqun tell everyone about solatium?

You can go if you think you have a good relationship, but not if you have a bad relationship.

In this case, even if you don't go, most people in the company will. If you don't want to get rid of the relationship, you have to give it, otherwise it is stingy. You don't care and explain why you don't pay, which makes you more stingy. Money can be paid and people can be absent. If you want to make up for it, you can also send a text message to explain that you feel stingy if you don't pay, so you think you still pay but people can't go. So anyway, the money is out, and people will not care.