As others say i think it depends on what you wear them with. I knew a woman in her 40's with great legs who wore them with ankle boots and a high neck jumper - they/she looked fab. I used to wear pvc trousers with the same combo too.
However, sadly, i do think your figure has something to do with your choice too. If you are short or have enormous boobs then probably not a good look, no matter what your age (i am tall and unfortunately have an a cup). Also the colour of the clothes you wear with it, so something the same colour looks good (so all you really notice is the change of texture - rather than throwing different colours/patterns/textures at the eye).
So black leather trousers and a cerise leopard print low top is probably out.
Also watch the accessories - some simple silver or gold or nothing at all.
Just in my opinion of course!