Here's an example of how sexism, without any conscious bad intentions, leads to physical danger and harm:
I work as volunteer bike mechanic for a community project that offer free cargo bikes all over Berlin. Those bikes need maintenance because they get used (and sometimes abused) a lot. We do that in small teams cycling to a couple of bikes and fixing whatever needs fixing. Usually it's a tour taking us to 4 bikes over a couple of hours.
Then we split the work among ourselves, one checks the chain while another adjusts the brakes or sth. An important thing there is to nit get in each other's way, because that's potentially dangerous. There's moving parts, sharp tools, etc, and a hand can get caught in a wheel or brake disc very easily. So if one person works on one part of a bike and hasn't asked for help, others should move on to different parts that are safely away from there. And when someone does need a helping hand, they should be the one coordinating to avoid accidents. 1/3