Why? Because it doesn’t ring true.
Work with me here, people! Do you ever hear somebody saying, “At the end of the day, yada yada…?” The thing is that the people who use that phrase use it over and over again, they use it as a crutch. Right?
In fact, you yourself are not folksy AT ALL. Somebody telling you to say “folks” and then you repeating it over and over and over, well, that doesn’t help.
Say people instead, or something,
In closing, “folks.”
NB: Don’t say folks. ever. That applies to everyone, but to you in particular.