Very clear problem, can see who the target user would be. Not sure about target age range -- seems like middle age or early seniors would be best target. Team did a great job thinking about user experience. Can see a lot of potential issues to solve.

I don't know anything else like this and I want it to exist. Loved that you thought about localization.

The idea can be more in details with strong motivation descriptions.

I am wondering if you have done any user interviews. The process seems long and you may churn your user right from the start, especially your TA is the elders.

An elderly communication tool, it's not new but would be new trend for elders.