I think that refusing medical intervention is a valid choice, and one I believe every individual should be able to make. As long as the risks are clearly explained, I'd fight for every womans choice to make the decision about what happens
You don't have to fight though do you? She does have the right to make that choice and nobody is suggesting that she shouldn't. But we are also entitled to say that choice was irresponsible and put her child at risk.
I think most people would have the sense to realise that if they wanted an unmedicalised birth then taking up the scans to make sure that there were no complications which could put the child at risk.
I do feel sorry for kids whose parents put their hippy dippy bullshit ahead of their welfare even when it's clearly not in the poor child's interest. One of the school mother's at DS's school is always sharing those 'crunchy momma's use coconut oil for everything' memes and banging on about how she won't use modern medicine to treat her kids with it and doesn't need to because coconut oil is so miraculous. Her poor little toddler is covered in excema and psoriasis and has terrible cradle cap. I just want to scream at her to give the poor little fucker some steroids.
Yes people have the right to refuse treatment for themselves and their children. But the rest of us also have the right to judge them if that means their children are being exposed to serious risk or major discomfort as a result.
Put it another way. She looked at the stats which told her that it was less likely there would be problems. Every time me and my children go out in a car the stats tell me that we will probably have a safe journey without incident. But that doesn't mean I just let them sit on the back seat with no belts or safety seats because as a responsible parent I make sure they are protected should the worst happen despite the stats telling me we're not likely to be in a crash. Given that birth complications are way more common than car crashes I really can't understand why some people would celebrate this whilst at the same time thinking taking lesser risks like not bothering with car seats ore safety belts are unacceptable.