We`ve had foodbanks since 2000 under Blair so it's a bit more than 12 years.
They are a fantastic resource that both help people and reduces food waste.
Broadly speaking the people they help have been failed in some way, either by their own parents, the state, or themselves (education/health/opportunity).
Our local FB has also seen an increase in referrals where both parents work, in poorly paid jobs, and their income is insufficient to cover their outgoings.
The biggest draw on their outgoings is servicing debt - that goes back to education or lack of life skills.
I would say it's a Government societal failure more than an economic one - the decline/demise of taught Home Economics in schools was/is an unmitigated disaster.
If you have lived your early life as a hungry kid you learn from it, if you are a decent person you share that knowledge.*
*awaits inevitable abuse for sharing life experiences as the child in a one-parent family when there weren`t any foodbanks and neighbours shared/chipped in