(This is used to request new product features, please visit https://discuss.istio.io for questions on using Istio)

Describe the feature request

So far have never heard users who depend on this feature.
The motivation is: pod is the most frequently changed resource in k8s, and mostly it is also with the biggest number. It will waste istio cpu/mem when no use. Making it disabled by default can achieve the best.

Describe alternatives you've considered

Affected product area (please put an X in all that apply)

[ ] Docs
[ ] Installation
[ ] Networking
[ ] Performance and Scalability
[ ] Extensions and Telemetry
[ ] Security
[ ] Test and Release
[ ] User Experience
[ ] Developer Infrastructure

Affected features (please put an X in all that apply)

[ ] Multi Cluster
[ ] Virtual Machine
[ ] Multi Control Plane

Additional context