Thin Skinned?

On average, men's skin is about 25% thicker than women's. It also tends to have a rougher texture. Most significantly, women have many more nerve receptors per square inch of skin than men do.

This may explain a few things.

It likely explains why some men tend to minimize women's discomfort. If a woman says something is painful, there are some men who dismiss her as being hypersensitive, difficult, uncooperative, lazy, or some other negative quality. After all, they don't feel it, and their reality is the only reality they recognize.

Skin differences may also explain why many gadgets and devices (often designed by men) seem deliberately created to pinch, scrape, bump, and bruise. The guys who built these things don't feel the pain, and never imagined that there might be something wrong.

Education can help solve these problems. Science education that includes fundamentals of human biology could make people more aware of how our bodies work. Encouraging females to pursue careers in technical fields where they will have more input into product design and manufacturing would go a long way toward improving the usability of many everyday devices.