A broken bone is a reasonable analogy.
If you break your leg, why cut it off so you could never break it again?
Yes, it fixes the problem.
No leg, no problems from it.
But it limits you, no longer are buffets, noodle houses, fish and chip shops, Indian restaurants accessible, in fact an awful lot of places no longer accessible, or it's dinning in the ground floor only with a very small menu.
Or alternatively take the chance, work with the NHS, get the leg plastered, walk on crutches for a few months, accept you can't drive the car, take the hit for a short period.
Ok, there is no guarantee it with heal 100%, but it could do, there is no guarantee you won't break it again, but that's down to you.
And when it does heal properly, the effort is worth it, life is back to exactly where you were before you broke the leg.
You still have it, fixed, life goes on.