I don't get when people ride motorcycles in shorts, I learned at a young age that is not a good idea.
I like old school, but not that old school have enough stuff collecting dust not used much at my house already. If vehicle related strictly since I am not a collector of cars/cycles/etc. not ridden much, I say if not driving it every now and again, why buy it, but that is just me...
As far as riding in shorts and t-shirt, I do it on my Valk all the time in the summer well over 50% of my riding time is in shorts. ONLY issue I have ever had is twice have got stung by bees creeping up my shorts in the nether regions stinging me.
I see riding in shorts/t-shirt not much different in viewpoints than not wearing a helmet, which I wear almost all the time. I understand the risks of going down while riding, but prefer comfort over care. I could care less what others wear while riding whether safety gear or not, should be personal choice, including helmet laws in some states required.