I have encountered a similar fox, in the mountains of Picos de Europa of all places, next to a popular picnic viewpoint.
It isn't good at all for them to become so fearless of human contact. Even the ones we get around here in west london still have the fear and will scurry off as you come close.
And sadly you are right, at some point it will come too close to a child or whatever and The Daily Mail will have headlines proclaiming that we should cull these menaces.
Sad, they are such beautiful creatures (and before someone moans about me be a soft townie, my family has generations of farmers in it, I know of the issues they cause and totally accept the need to manage them, though without chasing them with hounds and ripping them apart thanks).