Honestly mate, without knowing the individuals you're referring to I can virtually guarantee that they will have been assessed as unfit for work, and that's the real problem. I heard on the radio the other day that there are now 4 million working age adults who have been assessed as not capable of work, an increase of 1 million in the last 4 years alone. We need to radically overhaul the work capability assessment process, protecting those who genuinely need support and not shielding those are capable of working but just don't fancy it.