How much value do you put on your life
you can rest assured, if one is going, the other won't be far behind, and the tolerances will be better, its similar to changing one tyre.
I simply don't agree with you on this. If the other bearing is not showing any signs of wear then you are just wasting money. It may be good for a day, month, year or more. Why spend the money now if it could last for months or years? You could apply the same reasoning to CV joints, tie rod ends, shock absorbers, springs etc. Either the garages I've used in the past are total cowboys or your advice is over cautious.
+1