I think that it's also important to consider that it's much easier to cut oneself when using a double edge razor. The multiple blades locked to a specific angle that makes a modern razor safer likely also contributes to its greater cost and plastic waste.
I suspect that it's more also difficult to travel with exposed blades than with modern cartridges; both due to the ease of packing and due to security hassles.
Personally I started shaving using an electric razor, switched to a double edged razor, and then eventually switched to a modern razor.
I suspect that it's more also difficult to travel with exposed blades than with modern cartridges; both due to the ease of packing and due to security hassles.
Personally I started shaving using an electric razor, switched to a double edged razor, and then eventually switched to a modern razor.