Age vs. Receptiveness to propaganda/ ideology I am interested in the relation between the age of an individual and their receptiveness towards propaganda or ideology.

I would suspect that children/adolescents are strongly receptive towards propaganda and that as they enter adulthood they become less receptive.

Are there any studies on this that verify my claim/ contradict it?

Any help is greatly appreciated!
Welcome to Psychology.SE.

This has the potential to be a very big subject, depending on how deep you want to go into it. You may wish to look at priming along with studies surrounding conformity and peer pressure, looking at how they play a part in early behaviour and belief forming.

You may also want to look at Ron Jones' "Third Wave" Experiment which was portrayed in the movie called The Wave