I shudder to think what custom-made clothing would cost here in the States. My mother is no longer around to sew for me. Fortunately, off-the-rack clothing usually fits. The only tailoring I have had to have done involves hemming things up, as I'm quite a stickler about PPL, sleeve length, and shirt length. Even back when my mother made my clothes, most patterns would fit except for length, so the tailoring I now pay to have done is not anything my mother used to do for free. She always remarked about how easy it was to sew for me.
That said, certain brands fit me very well off the rack, as if they were custom made for me, while most brands don't. I always go on safari hunts to pick and choose what works for my body type, personal coloring, and style.
I don't go into a store expecting clothing to fit me. It usually doesn't. Again, it depends on the brand; and even with a certain brand, certain things don't fit. It's a royal pain, but I somehow manage to find well-fitting garments.
I think what most people don't understand (but we YLFers surely do) is that cultivating a wardobe of properly fitting, stylish garments takes a lot of time. Some people don't want to spend the time necessary to look as good as they could. Thank goodness we have Angie to help us! She makes things a lot easier.