Oh come on, since when did kids start doing what their parents tell them to?
What can i say? Some parents are old school and not up to scrath with todays entertainment and understanding of todays teens choice of leisure and lifestyle.
You could really just talk to your Mum or just convince her that the flash that does have mature content, whether it may be pornographic or contains killing sprees or whatnot, convince her that they don't really have any extreme affect on you.
I mean, we hear and see stories of murder and other despicable crimes on television, that doesn't mean we go out and copy them.
...or does it....