like by 2 years. Do they go for younger guys or do they shun away and go for older guys more often?
It depends on who the chick is. Either way, most chicks have a preference but it shouldn't matter too much, personality should matter the most. If you're trying for a chick who is so hung up on specific ages that personality has no meaning, then she's not worth it. The certain age preferences of a chick may hold you back in some cases slightly, but it shouldn't totally ruin your chances as long as you have a good personality, good looking, and she's not a stupid bitch. Go for it.
It depends on who the guy is. Usually no.
Depends on the ages. For example, 17 year old female, and 15 year old male. Probably large difference of maturity and experience there. The difference between 24 year old female and 22 year old male, however, is probably not as significant.
so im 18 and going for a almost 20 year old girl is bad idea?
Just try it, what can u loose?