If an insurance company were to offer it, there would be nothing wrong.
This is the government forcing business to do things they don't want to do, and that is wrong.
Think of it from the point of the insurance company. Imagine you own a health insurance company.
I see it from both sides unfortunately.
Imagine you have a kid with pre-existing conditions. They graduate college and get a job, what are the chances of getting one with insurance benefits these days? If they lose insurance for any reason they are stuck.