That’s actually been legitimately tried, and if I’m not mistaken, there was some coach somewhere that almost always went for it on fourth down.
I can’t remember if it was a lower division college, or high school , or a junior college.
Also, if I recall correctly, and I’m not sure if it was this guy, there was some guy that ran some kind of a statistical analysis that pointed to a greater success/win rate for consistently going for it on fourth down
Another vague recollection I have, didn’t Belichick go through a phase, like maybe 10 years ago, where he was going on it for fourth down quite a bit?