Minecraft Switch 2 Version for the physical Version.

I understand if it is Not wanted to copy the Game by Buying the Upgrade and downloading it on another Switch, but at least let us buy an Upgrade for the physical Game Version in the Nintendo eshop. I don’t want to have to start whole new worlds or transmit them on a different Game. To have just one Full Game and Not having to Transfer the Data between the physical and digital version Would be Perfect. To Support the physical owners, the Solution could be, to make sure that the cartridge is inserted so that Nobody can copy the Game. The Upgrade could be free or at least Cheaper Like this.