I wasn't going to mention this, but today's Doonesbury just nailed this so hard I had to share. I didn't realize it was a big issue. We just went suit shopping with our son over the Christmas break. He insisted on trying on sizes that we felt were too small and too short. He would lecture us on what was the current "style" and would pull up internet articles with pictures on his phone to show us examples of men wearing suits that were too big and too long (typically old politicians) next to stylishly dressed young men (typically young actor types). We compromised a little bit (He is 6 ft tall and did not buy a size "short") and he looks great, but I just got a huge kick out of today's Doonesbury and wondered if other parents have recently gone through this.
I also warned my son that if today's style is "short" pants that could easily change in 6 months to "long" pants that drag on the ground. His sleeves and pants are not too short, but the suit is definitely on the tight side. He has a great physique so it looks good on him. I shudder to think of overweight men squeezing into small suits trying to be "stylish."
Today's Doonesbury when the old guy goes shopping: