

Maybe that works for internal and business communications, but if it is communication externally with clients there are a lot of people that just don’t answer their phone. Sometimes it is important stuff, and sometimes there are followup questions.
“XYZ is no longer available. Would you like ABC instead?
How many of ABC would you like?”
For two and three, even if there weren’t a genetic component, the lifestyle and dietary habits of a family absolutely do impact the next generation of the family. Learned behaviors that increase the risk of alcoholism or heart disease absolutely count as “runs in the family”. Further, “runs in the family” never meant “everyone in the family absolutely has it”.
(None of this directed to the comment I’m replying to, just continuing the thought of the comment.)