For sure it's not as easy as just saying "you need to accept it".
Yes, this is true, it's a very human problem and many people have to work at acceptance and many fail and probably always will. Be it death, old age, family situations, not getting into a particular career path, not being loved by the person who loves us, not having large breasts, the realities of being a mother, being the wrong sex.... some of those are more serious than others but they are all things people can feel are very significant to their happiness or their identity or ability to live. Acceptance can seem like failure or require a whole new way of thinking about yourself.
But I don't think we make it easier by opening up more possibilities. In many cases the opposite, the more possibilities the harder it is to get to a place of acceptance. I heard a very interesting interview a few years ago with the wife of someone I knew, she had MS. They were asking her about a new treatment that wasn't yet approved and whether it should be, and then funded. One of the things she mentioned was that people with big issues like that are very vulnerable to every new thing, new possibility, and constantly chasing those can be bother personally and financially draining. She saw that in itself as a reason for the government to avoid approving new things just to provide more options when they weren't in themselves well supported.
You do see the same thing with death - the possibility of doing one more thing can make it harder to do the psychological work of acceptance. Which is always required in the end.