I was wondering if I could start a wiki on mobile if so can you help me
If you just mean while using a mobile device, yes. If you mean while viewing the mobile layout, no. Also "no" is you mean from the mobile app.
FYI, the Special:CreateNewWiki on CC in mobile, will switch you to Special:CreateNewWiki on the UCP wiki in the desktop skin (Oasis).
What do you think?