as for your front bumper - no one ever looks UNDER your car - so you will never notic scratches/scrapes
when was the last time someone looked at your car with the same perspective as what is in this photo?
or even...
Most people will be looking at your car from this angle...
So if you have scrapes on your front bumper...
NO ONE WILL EVER NOTICE!!!!
... 3 years and no problems with the lower part of the front bumper
The problems that you will have if you drive like shit will be...
the attachements inside your fender...
(ever wonder why there are no close-up shots of my driver's side fron fender
)