Why are young men in Ghana messanging me on Myspace?

I rarely get messages or friend requests from people I don’t know or that don’t know someone I know on myspace. I recently got a friendly sounding message from a 17 year old man in Ghana. Like, I love the pictures of your nice family, etc. Very broken english. So I sent back, oh, hello, tell me about life in Ghana. Then, the next day, here’s a new message from some other teen age young man in Ghana. I looked on their friend spaces and they both just got on myspace, and their friends are all….middle-aged women in the US!! What?? I didn’t approve the friend requests, but like what?? Does this not seem wierd to you?? I am not racist or unfriendly, but it just seems odd to me that these young men are messaging old ladies. ?