1cardassians should have heated uniforms

I've seem several people mention that Cardassians appear to be a reptilian species, which is why Terok Nor was kept too hot and why Cardassians complain that it's so cold in DS9. If so, they're probably cold-blooded. So why don't their uniforms have heating systems? Surely, once they made contact with more space!faring species, they found that the vast majority are warm-blooded and the cold (to them) put them at a disadvantage.