Haha, that "old guy" is actually my dad, but I won't tell him you said that :)
I think it's very understandable to be skeptical of online privacy these days. There is no such thing as perfect privacy, but there's a wide spectrum between a fully public Twitter account and a Gmail account secured with 2 factor auth.
Where you strive to be on that spectrum influences your product decisions, and that in turns affects the interactions your customers have. In our case, the goal is to encourage meaningful conversations between close family members, rather than broad public sharing.
More info here: https://www.storyworth.com/privacy