I can only see this going into a very dystopian path. Based on their actions, I don’t trust these companies, their security practices, nor their privacy policies. Why would I give them my biometrics? And my full palm, at that!? Hell no!
The thing it these readers are so convenient, my only complain is I wish they would work as the password hash technology. But as of right now we don’t know for sure if that machine is saving a “hash” of your palm or is directly saving a copy of the original biometric data that would allow it to “recreate” your biometric ID somewhere else