Neat Approach, but I think more clever solution would be to create a custom property delegate (i.e `ReadWriteProperty`) and delegate the fields to it, benefits of this approach would be:

1- reusable we can use it with more than just a viewmodel

2- significantly less boilerplate compared to many interfaces approach

3- well encapsulated, it will not allow the consumer to modify the property

4- last but not least, it will be more elegant, cleaner and readable to anyone reads the code.

What do you think about it?