The harsh reality is that there's not enough incentive to work for a lot of people through a combination of state supported welfare, lack of job security (i.e. short term contracts / zero hour contracts) and the financial and mental health cost involved in working (transport to and from work, paying for childcare etc.. it's a financial cost but also impacts work / life balance i.e. a lot of people realise they have none if they work).

Remove all forms of welfare and you can bet people would be queuing up for jobs to keep a roof over their heads and buy food. The problem is, if you were to do that, the situation would be taken advantage of by the super wealthy - as has been the case time and time again in any sort of recession.