@whatdoesthismeaneh
Do you think it's an 'adequate' safety net for disabled people on £74 a week. Or singles made redundant. With housing benefits less than rents, they pay say £20 a week for rent. Leaves them with £54 a week - for food, electric, gas, water, council tax (full council tax benefit no longer exists), phone and internet (needed to claim benefits and look for work and/or contact doctor/hospital), occasional clothes, medicines, bus fares, etc.
You think that's manageable?
Or the family with full-time working parents but needing UC because wages are low and housing costs high. Who need to pay for childcare as well as all the other essentials. Emergencies and unexpected expenses, i.e. the washing machine breaks. No money to get a new one. Try going to a launderette. It's expensive.
How about the families with disabled children. All the extra costs associated with that.
Or the woman who's fled domestic abuse, leaving everything she owns behind and therefore faced with finding the money to replace it all - clothes including underwear, cooking utensils, toys for the children, etc.
Benefit recipients are not one homogeneous group. A minority might do ok or be spending it on drugs. The majority are not.