Ability to add Living People if there is Consent
I think it would be very useful to be able to add living people to the tree if there is mutual consent. For example, I'd like to be able to merge my husband's ID and the one I created on the family tree, and the same with mine and his tree. Hopefully minimizing the amount of merging that would happen after death occurs.
As far as minimizing privacy concerns, there might be a way to set this up where everyone is happy:
Say I want to add my cousin's ID to my tree in order to see and add memories about her. Her name is Jane Jennifer Doe, born 01/01/2001, and her ID is XYZ-1234. In my family tree she is listed as Jane Doe, born in 2001, and the ID is ABC-5678. I would contact her separately for the information, send a request with her full name (Jane Jennifer Doe), birthdate (01/01/2001), ID (XYZ-1234), and stating our relationship (daughter of father's sister). Incorrect name, birthdate, or ID would result in an error message that would encourage communication with the cousin and deter strangers from making requests.
When successful, this would send a notification/message to her, outlined with all of the information I would be able to see, what information I would be adding from ABC-5678 (which can be edited), and she can either accept or reject the request. To add me to the tree, she would follow the same pattern.
This would only work for that individual, and further requests must be made for the rest of the immediate family as needed. Vital information can only be changed by the living person, but collaboration and memories can be attached after the review of the living individual. Consent can be revoked by either my cousin or me, and ABC-5678 returns as the person on my tree. Additionally, individuals would have the option to opt out of any living persons requests.
I think this would address the concerns of security while also collaborating with our living relatives to create a tree full of memories.