No. Maybe Ive read to much lolli manga, but girls seems to fall under the impression of love much faster then boys. The point Im getting to is that a large gap of age is wrong. :p
He's saying most people experience real love once they get to the 18+ age. Who cares if your girl is like 2+ years older than you or your older than her.
Look at Ashton Kutcher and Demi Moore o:
If that's what you were pointing out, I might have mis-interpreted that. :p