Should we use wheatstone bridges nowadays?
What you are missing is that the common purpose of using a Wheatstone bridge is to balance two sensors. Ie. when we use a Wheatstone bridge we usually have two variable resistances or current sources that we want to balance like this;







simulate this circuit &ndash; Schematic created using CircuitLab

You are right in concluding that if we only have one sensor to measure and not two that we want to balance then the Wheatstone bridge is not the ideal way to do it.