No, not instead of as in "never see a doctor" but rather as trying to be smart about things you can do yourself. For example:
Healthier lifestyle: do you need to consult a doctor to decide to cut down smoking or even stop it? (No) Start exercising? (Most likely, no, thise few who need will likely know.) Changing your diet? (No, unless you are doing something very special.)
Picking up some basic skills also means you can treat smaller issues yourself.
I keep iodine solution, painkillers, and wrapping bandages for smaller sprains readily available at home. Leave antibiotica, wounds beyond scratches (could have been infected by tetanus or other nasty stuff) to the professionals.