Trying to ignore the difference is trying to ignore the universe. I recall the most vivid example of difference I have ever seen as when my Mum and Dad were about to go grocery shopping one Saturday morning years ago. It was a matter of deportment. It was a nasty winter day and Dad had a felt hat, plaid doeskin shirt, plaid wool jacket, wool pants, and gum rubber boots. Mum had a fit. Dad enjoyed his morning out and Mum and I cleaned house - vigorously.