Congrats on your launch!

We had our baby two weeks ago (a mixed race kid as well) -- luckily we managed to find a service here in Australia and get his cord blood stored at the last minute. I didn't know this is a thing and could be vital for my kid's future health. My in-laws work in the medical industry and they were the ones who suggested us to do it. I was curious why isn't this suggested or recommended by OB/GYNs during pregnancy? Are there still any medical restrictions for using of cord blood?

Also, is 20 years the maximum effective storage period for it? Is it possible to transfer it between countries in case we decide to migrate in the future?