So starting at 30, already 1/3 of your career is lost and to succeed at interview you will have to be a lot better than a 20 year old.
Errr, no you don't.
At least not with NATS.
As a great deal of NATS' interview is based on evidence of competencies one might argue that the older you are, the more life experience you have, the 'easier' the interview.