A mortgage is a exception, definately good debt and investment into your future. However my path in life has not allowed me one, been walking the big uphill road on my own always, hence my nick
When you get a mortgage you can not rely on excuses anymore at life, you have to succeed and there is no second option. It's certainly not for everyone, in fact it's relentless. I did the whole thing completely on my own tho which probs makes it a bit harder (or not). When you get it done and dusted you will walk two inches taller.
there is something to be said for starting young but if your not ready then your not ready.