Style and fashion are 80% personality, 20% clothing. You can be well dressed, but if you have the personality of a cardboard cutout, no one is going to remember you, or that you were dressed fashionably when they met you.
Also, just because you aren't wearing a t-shirt doesn't mean that what you are wearing is stylish. This 'tip' is just phrased in an annoyingly paternalistic way.
Also, just because you aren't wearing a t-shirt doesn't mean that what you are wearing is stylish. This 'tip' is just phrased in an annoyingly paternalistic way.