As your investments begin to mature into a considerable amount, while you consider the security and safety of it, it is also important that you consider the situation where you die suddenly and your Bitcoin gets lost; no investor would want that except they have no family and friends worthy enough for it.
That's terrible when it happens, but if you are the owner, plan ahead and share keys or recovery seeds with a trusted one or include them in your will, so that Bitcoin can be inherited and accessed by heirs.
I have read about a similar situation where a guy invested in Bitcoin, and before he died, he managed to secure a vault that only his family could access. When he passed away, his family opened the vault and found a videotape that explained how to access the Bitcoin. I think it's similar to that.
But no one thinks about this for the future because we know that none of us is ready to die.