I really think it’s important to explore this topic. A few weeks ago, when my daughter apologized for crying, I told her she shouldn’t apologize for something that’s so natural. I couldn’t believe she felt so bad about it. But, later, when I cried, I caught myself saying, “Sorry,” in an effort not to disturb anyone.
It becomes quite reflexive isn’t it. To apologize for crying. Especially if our upbringing and the wider societal norm is less accepting of shedding tears. But what I’ve personally concluded from looking at the current literature on crying is that it’s a personal process that should neither be forced nor encouraged. As you said, it’s a natural process. It’ll happen if it does, and I don’t think anyone should have to apologize for it.