Yes, we should be worried. It is hugely concerning that 1. Students cannot get the funding required to live and feel the need to turn to these lenders and 2. Students have little issue with actually turning to these lenders. Yes, they are quick and easy, but the cons completely outweigh the pros. I spent most of last semester studying payday loans and the statistics are just shocking. Yes, payday loans are now more regulated, but they are in no way a smart option for anyone.
Also, you may not have had any trouble in terms of your debt spiralling out of control, but your Wonga loan will stay on your credit history for 7 years and you may find it difficult to get a mortgage in that period.