If her name was Bristol Smith instead of Bristol Palin she'd be a single mom in a double-wide trailer in Wasilla. Being a Palin is all she's qualified to do.
At 20 I could shoot, hunt, fish, farm, and run a radar scope and be part of a combat crew. Not sure how much farming she has done, but apparently she can shoot hunt and fish. ;)
We will never know what her life, or yours would have been like if they were someone else's lives.