As some one who works on major sites having analytics is a strictly needed cookie - other wise how do we optimise the site and if we can't do that in a cost efe

As some one who works on major sites having analytics is a strictly needed cookie - other wise how do we optimise the site and if we can't do that in a cost efective manner and the site loses trafic we have to make peopel redundant - and my employer has done that in both the USA and the UK Are you going to ban in store CCTV and Footfall analysis next?