remember the negotiations are in relation to withdrawing, not the subsequent relationship.
The entire talks are on the the future relationship with the EU and what will, or will not, continue.
If it was just about withdrawing then it would be done and dusted.
Statement by UK gov when it all started:
Senior British and EU officials opened talks on the UK’s future relationship with the European Union on Wednesday, marking a milestone in the Brexit process. More than a year after the government triggered article 50, British and EU negotiators met behind closed doors to discuss the UK’s future trade ties.
From the BBC
Negotiations about future relations between the UK and the EU are taking place now.
WTF are you on about?