Orrrrrr...
You get a one-time use cheap disposable wristband every time you enter the park and you can go home and ADD the new stats to your old stats, explaining what Williams meant when he said take it home to your console and “build on it”.
That would put most of the tech work load on Nintendo for score keeping. And in the land stats would be temporary.
We really just don’t know yet what they have in mind. And it very well could be very different from region to region, depending on what each management wants, or what they see worked and didn’t on the lands before theirs.