I did 2 years voluntary work while training for my work as a counsellor but I enjoyed it and it did lead to paid work though not high pay. Voluntary sector pay isn't high usually. We have no core funding anymore in UK and have to bid for contracts which often don't reimburse core costs of administration and so on. You have to be value driven and be doing it partly because you want to help. It shouldn't be like that but it is. And lots of higher paid jobs come with penalties like distressing working conditions and strict stressful managements.