You're sure?
There is no waiting list.
(Unlike the wait for that great health care in the UK, etc.)
Only certain patients can be accepted at hospitals like St. Judes. And if you don't live near it or the other rare free kids hospitals you have to quit work and move there or leave your sick kid alone in the hospital.
Don't believe all the bias you read in the US media about the NHS in the UK or Canada. They are trying to convince Americans that it's crappy care and they are better off in the US. In the UK there is no waiting if you have a life threatening disease. Depending on where you live, you may have a wait for a specialist appointment or non life threatening surgeries and there are maximum waiting times that must be met. Emergencies are take care of immediately.
If you live in London or a big city you're likely to wait longer that elsewhere. The NHS in England is separate from the NHS in Scotland. My husband and I have zero complaints about any care or waiting times. When we've needed specialist appointments we have always gotten them within a week even though it wasn't life threatening. In Scotland and Wales all prescriptions are free. When I was first living here I asked about getting a bone density scan as my last one in the US (a heel scan) wasn't very good. Within about 2 weeks I was sent for a full body scan! No charge of course.
We have an NHS dentist. We pay £10 every 6 months for a thorough cleaning and check up.
Nobody ever has to file for bankruptcy due to medical bills in the UK. I believe that healthcare should be a right, not a privilege. The US is the only first world country that doesn't think so. You can keep it. I'll keep the NHS.
I was very lucky that my kids and I never got seriously ill or injured during the many years when I had no health insurance from my jobs in the US.