Do girls quit smiling at guys as much as they become older?

I mean are they more likely to smile at a fresh faced kid just out of high school than a guy in his mid late 20's just cause as you get older you look less child like cute but more mature. Not because you look uglier. I noticed this with my friends and i. I don't think we at all look worse. Girls smile less but i doubt we're uglier just not as youthful looking but more mature looking. So, do youthful guys draw more smiles because they look better or do men just get less smiles not cause they're uglier but just not cute like a kid.. Be honest. I'd just like to know.