It's not the case for anyone. For almost everyone it is true that they are better off working.
The only cases where people get more invome from benefits than minimum wage are with 4+ children with disabilities.. and even then the PIP/DLA isn't an unemployment benefit.
Living on minimum wage is hard, and everyone is suffering wages with not going up with inflation. A staff nurse's wage is creeping closer every year to NMW while we continue to fund a triple lock for pensioners.
A private business offering poor children a free day out isn't the thing to get outraged at IMO. It's worth bring curious why the daily mail is angry at this and not wage stagnation.