Aging Disgracefully

I'm nearing 50 years old now, but I sport a buzz cut, drive a Cooper S, tote a bright red, yellow and blue Timbuk2 messenger bag, and generally dress like a student. I'm not trying to follow a style, or dress younger than my age. I've always dressed like this. But I thought that as I aged, the things I'd always liked would become old fashioned. Unfortunately not, and I'm stuck with lifestyle accessories that are popular with young people. This puts me in the position of appearing to wear styles inappropriate to my advanced age.