That's why I HATE it when someone asks "but did it touch their glove?" That is NOT the litmus test for scoring an error, but parents seem to think it is. SMDHLol...this is often true for those who should know better. For those who've never fielded a ball in a competitive game, some eye calibration and experience is required. One of the better ways to gauge is to watch a D1 college softball game. You'll see plenty of things scored as hits that one would think were errors.
I'm not quick to assign an error at all, but if a routine grounder rolls by within a step, or a lazy fly ball falls where it should have been easily caught, it's not a hard call.