Explain the concept of Fashion- The good news is good chance he will be stuck in her old ways and won't want to hand over his jacket and dress pants from the eighties just for a more modern suit and tie. Don't be discouraged even though. Take the time to explain to him how times have changed. Acknowledge that although that was the epitome of style 30 years ago, he won't have the ability to power his way while using corporate world wearing it now. If he still isn't sure, research his favourite actors ...