about BDSM

as someone who is part of the BDSM community, altough I've never practised it, I know I'm turned on by that sexual practice, I've always wondered what others think about the sub culture of DDLG, DDLB, MDLG & MDLB. Is the age play bothersome? I mean I see it as a borderline romantacization of pedophilia...maybe even incest. I know some people defend the age play in that sub category because the people involved are not actually minors having sex with adults but I just don't understand it. If anyone has compelling arguments to my statement on this community, because I feel like everyone I adress this issue to never agree with me...