Though it’s simple to say razors should cost the same for a man or woman, a men’s razor and a women’s razor aren’t the same product, a women’s razor, being used for a considerably larger area, have extra lubrication and a different build, which would make it miserable to shave a face with, but pretty good for legs. If a woman would prefer to buy a mans razor to save the money and put up with the lubricant, then it actually costs exactly the same, just as if a man wanted the extra features or to possibly use it for his legs, he would pay the full price for a woman’s style razor. Design dictates cost and this includes the unseen research for better lubrication, shape, maybe rubber grips for shower use vs in front of a mirror. It’s simple to look at raw facts, ex. Shampoos are more expensive when geared towards women as a whole, and see that as a tax on women, but it could be as simple as women value shampoo and technology in shampoo that provides a better job for healthier hare. Thus more research is made and better ingredients are used and it costs more because of that. I like the fancy shampoo and I don’t get a discount on it just because I’m a guy. Meanwhile my dad still uses a bar of soap for his shampoo... which is remarkably cheap and he scoffs at the expensive shampoos that other people value. Insurance is a whole other issue, I pay more for my premiums because statistically I am more likely to get in a wreck than a woman with my same age and history, this feels like I’m being charged because of my sex, but it’s just statistics and the statistical cost of insuring me based on the likelihood I’ll need it. If we even that out, then I’m just being subsidized by statistically better drivers. It’s awkward to look at the world and see differences, but they aren’t always there to be malicious, they are there because that’s is the way the market works. The alternatives are... buy men’s razors, and men’s shampoo, but you might find that the technology that went into them aren’t sufficient for the quality you are looking for, and extra quality costs more.