Yeah right. Everyone finger printed? Why volunteer it.
The finger print reader is a security feature. It uses a fingerprint as a "password". This way only the person assigned the device can operate it.
As the other poster noted, the fingerprint reader is ONLY for the census worker. It’s so if the device is lost or stolen, nobody else can access the data or even turn it on.
They’re not going to be going around fingerprinting people :-).