I think it is nuts that older guys are still looking for 18 and 19 year old girls or girls who just got back from seminary. They have absolutely nothing in common. It shows a lack of maturity in those boys if they need someone that young. AND young girls are 100 percent discouraged from going out with someone more than 3 years their senior. Again for the same reasons, they are on a different wave length and they have nothing in common with them.
At that stage of life, every year makes a big difference in maturity and life experience. A 26 year old guy is not the same as a 22 year old or even a 23 year old. So for reference sake you should know that an 18 year old girl is no where near the maturity level of a 23 year old. So a 26 year old guy should be looking in the pool of 23 year old girls and leave the 18 year old kids to the 21 -23 year old guys.