Hmmm, maybe you should get around to watching more Anime in it's better form, eh?
Male characters in Japan are often voiced by females. It's not uncommon at all.
The reason for this, I do not know, but even with the female voice actors, it's a lot better than anything we can muster here in the American Dubbing process, excluding a select few Anime.
You seem like the sort of kid who would be a Dragon Ball Z fan, so it'd probably be nice to know that in Japan, Son Goku, Gohan and Goten are all voice by the same woman, and she is very talented. Much better than any of that crap by FUNimation. However, Shinji Ikari from Neon Genesis Evangelion is also voiced by a girl in Japan, as are many other characters. It's very common.
