Parent has memory problems/cognitive disability and is sending random nonsense messages to contacts. What are my options?

Hi,

One of my parents is having memory lapses and is sending messages that make no sense, sometimes they're about stuff that they've dreamed but think is real, or they're sending threats about stuff that never happened or happened in the past. We get confused calls from that person and our family basically has to clear the situation up to say it's a mistake. This has been happening with several people we haven't spoken to in years.

Is deleting the app the only solution? Or is there a way for us to disable their keyboard to make WhatsApp read only? This is for an iPhone, so not sure what the permissions are.

Thank you.