DS went for his 6th form college interview today wearing jeans, t-shirt and a zipped top. He had been due to wear school uniform, but school was closed due to the snow. I suggested smarter clothes, but DH thought 'student wear' was fine. DS told me there was another lad there for interview who was also wearing jeans and a girl in a very short skirt!
I am of the opinion that smart clothes should be worn for interviews/meetings of any sort - but sadly DH & DS don't always agree with me!
Smart is good, but being confident in his clothes and not fidgeting in a collar and tie if he is not used to them are more important.
DS wore black jeans and a smartish jacket for his university interview/audition (music)
Whatever he wears needs to be clean, unstained, and ironed if it needs it - looking like you don't care about your appearance makes them worry if you care about other "boring" things like punctuality as well.