Mr Cameron also said:
One reason that many people will want to stay in the European Union is that they believe it provides an underpinning of rights for workers and employment rights. I would make the point, in addition, that we in this House have repeatedly chosen to go over and above those rights: we have had the right to request flexible working for all workers since 2014; we went well beyond the EU directive on maternity leave by giving 52 weeks’ maternity leave; we have provided shared parental leave; and we give eight days more annual leave to full-time workers than the EU working time directive.
As Jo Swinson revealed, Conservatives resisted many of these measures. It is doubtful whether these improvements would have been achieved without LibDem pressure.