Costs.
I didn't realise until a few days ago, you guys pay thousands, tens of thousands, even a hundred thousand to give birth to a baby. I know this because ......
......and she was living in Germany. Her bill for giving birth was €0.00. Just like in the UK, £0.00.
And is the average monthly health care premium over $1,000 in the US? In the UK, it works out that it costs £500 per month on average in tax. So pay half the price to then pay £0.00 for the treatment. And if you want to, just go private, pay for the treatment if you wish. Even then, it's still a fraction what you guys pay.