[Private]
Yes, if something happened to you, then it's obvious your brother will worry about you and want to keep you safe from something like that ever happening again.
[a pause]
But in his need to keep you from harm, your brother can also keep you from being able to learn to take care of yourself. That's not fair to either of you.
You would spend your lives in purgatory. You unable to grow and mature, and he unable to do anything but shield you.