How is FSD going to save your life? Are you talking about the collision avoidance features of FCW, AEB and OAA? If so, those come with autopilot. Not to mention removing the radar meant that anything that can impact the cameras, lessens their effectiveness. Radar did a lot better at judging distances.
As for trying FSD, I did. I wouldn't give them a dime for it. I drove thousands of mile on FSD and AP on the same routes. There is almost nothing FSD offers me over AP that I value. Thank God I only subscribed rather than pissing my money away on it. If it was really a lot of value, you'd see that reflected in the resale value of cars. FSD depreciates faster than a 2021/2022 Plaid.
Not just my opinion but that is what the used car market thinks of it. Not to mention why many here call it "Fool Self Driving". If it could actually be full self driving, with no input, I'd drop the 15k in an instant.
If it works for you, great! Glad it does for some subset of the owners. EAP would get me most of what I would use anyway. It it was $3k, I'd probably drop the money. If I am going to drop 15k, I'll buy the CCB (carbon ceramic brake) kit and get some real value for my money.