I mean choice about whether you actively seek information and communication with alters who are behind amnesiac barriers. Whether you choose to find out what they do and know or not. One can choose to know or to not know.
Sometimes a choice is forced.
Like when there are ethics involved. For instance:
In that scenario does anyone really have a choice about what to do?
editing this because of course a person has a choice about it. Just like our mother made her choice.