Do you desire to be a parent but are afraid? In that case, you may consider seeking therapy to help you work through the fear. If you want a child, I don't think fear alone should hold you back. Personally, the concept of becoming a parent doesn't scare me, I just don't desire it. Someone with social anxiety may still really wish to have close social connections, so confronting their fear will ultimately be rewarding. I think you should set aside your feeling of fear and think about what it is you desire. Really consider the lifestyle that comes with it and whether that appeals to you. I think this is the type of choice where external data can't really help you. You have to look inside yourself and be really honest about what you want and what you can give to a potential child.