I would like to know if there are any real qualifications for a team to play 18U Gold? There is a local 16U team who was an average ASA A-team at best last season, who just declared they are playing 18U Gold next season - and to the best of my knowledge they have not made any significant player upgrades.
I think anyone can play Gold. They may be out of their league though.
My DD played Gold for 2 years, even after she committed and even after she signed. She leaves for college in a few weeks and we fly that traveling and playing top competition was the best way to prep her for college ball.
As to the original post, I would agree with others- there isn't too much difference between 16 & 18 except the 18 game seems a little faster or sharper sometimes. I think plenty of coaches recruit at both the 16 and 18 level. If the talent is there, the coaches will be there too. We always had lots of coaches at our Gold games.