Do guyz know what they want?

There's just no wining with guys. i have a lot of guy friend, i go out to parties n stuff but its hard to understand the behavior of the young people ma age 19+ especially dudes; i mean guyz say they want a girl they could take home to mama but they in the clubs and on the streets looking for one night stands and hoping some girl is down to F**K. surely they're just limiting the amount of girlz available for other guys to take home to mama. A guy once told me he has always and is still hoping to be the one who dis-virgins his wife, but he doesn't seam to bother about the fact that his one night stand is someones potential wife. do guyz actually think things through or does the guy below do all the thinking for them?