[Boudica]

When you give someone a gift, you're accepting the possibility that they may squander it. We're not puppets, after all.

Very interesting take on it. I suppose a "gift" denotes passing ownership to the person you're gifting to. Arguing on the semantics of "gift", you could say we own our own bodies, and still be within the bounds of that religious view.

Without a religious lens, I would argue it could still be a good philosophical question. Ownership is often considered to mean "total control" of something, but I don't think that's quite right. You might own a dog, but won't be in total control of all of it's actions and behaviours. In that sense, I would say I own my own body, but don't have full control over everything that happens to it. For example, if someone makes me laugh, I don't necessarily choose to laugh as it's an involuntary response. You could also go down the route of women's rights and abortion laws. Or as Kurd pointed out, there's also medical aspects to consider.