If you want anything from society you have to justify/earn it.
I can't just get PIP, I have to have my need assessed to be awarded it.
I can't just get free travel, I have to show I am over 60, or have my other needs assessed first.
I can't just get a job, I have to prove my ability.
I can't just get life insurance, I have to prove my worth.
Why is the GRA any different? Why is it humiliating to evidence your need and prove it is appropriate?
I can't think of any other situation where "I need it, I want it" is debated, never mind tolerated.