I'm lucky in that my parents allow me to have hamsters, but unfortunately everyone else is right in that you have to follow the rules your mother has. Maybe ask her why she doesn't want a hamster, as it could be something you could work around. (If it's that you're too old just show her this forum as I'm 18 and lots of others on here are adults, but she probably has other reasons too.) And even if you can't get them now, you can always get them in the future.
