I thought the whole point of having required fields was that the user had to fill them out before they could proceed. I currently have group registration and you can just click "Next Step", despite a whole list of required fields, and go to the next Member.
I have Yes, Required selected on about 10 fields and there's a little red asterisk on the page next to the field, indicating required.
You must not have the latest package. There was an issue with this recently that was fixed. Please update to the latest package (2.7.3c) then if your issue remains, submit a ticket and let us know also what browser you are testing with.