DB forgets that times have changed.
However, I must add, when my son (graduate, 10 years work experience) was out of work, he literally had a pile of rejection letters, he would keep them and show them to me on the days when I went to his house to open curtains and pull the duvet off him (depressed): one of the things he did during this time, was make flyers and put them up all around the area he lived in, with his telephone number, inviting other out of work people to join him in the local coffee shop so that they could job hunt together on their laptops. Eventually they were a motley assortment of artisans, graduates and people straight out of college. It never became a big group but it contributed immensely to his well-being at that time. The coffee shop supported them and gave them 'bottomless coffee'. I admired him greatly for doing that.
Then there was this 22 year old that I actually saw at Waterloo one day: metro.co.uk/2014/08/19/graduate-lands-job-interviews-after-doing-this-at-waterloo-station-4838334/
I've heard of others doing similar.
So I suppose I am saying that is the contemporary equivalent of 'knocking on doors' and people have to be innovative. Not easy. It took my son 3 years to find a job, he did labouring work in between on construction sites.