Again, selling your body is working in manual labor more than sex work. You literally destroy your body for it. Sex work doesn't.
There are barter systems where people exchange their labor for goods without any money involved, but I think you'd be hard pressed to find a system where people sell their body for goods on regular basis.
I've seen people need surgery for their knees by 30 because they sold their body to lift cargo. It happens incredibly regularly. As for sex work, also incredibly regularly, which I wouldn't describe as "selling your body" but it is using your body for a service. It's not being damaged or losing value though.
So exactly how does one provide for one's need for food clothing and shelter if they DONT want to sell their time? Live in the woods and forage for berries?
OK, first you're implying I said you can't sell yourself for money. I didn't say that. You did. I just pointed out that we all do it. You only had an issue with it in regard to sex work, but for some reason don't care for other work that takes so much more from us for less in return.
Second, there are alternative systems to capitalism that don't require you to self yourself for survival. It isn't a requirement for life. To see how capitalists see us, the people at work how interact with us are called human resource managers. We're a resource to be consumed and spent to generate profit for the comoany. You're just diluded into thinking that's fine, but people can't choose to do the same with sex work. Why not?