The European Commission announced draft rules on Thursday to give many drivers for online firms such as Uber <a href="https://www.reuters.com/companies/UBER.N" target="_blank">(UBER.N)</a> and Deliveroo <a href="https://www.reuters.com/companies/ROO.L" target="_blank">(ROO.L)</a> employee benefits, a move labour unions say is overdue but some companies argue will lead to job losses.