What is considered as learning and what isn't?

So, about the last debate we had at the TOK class: we talked about what is considered as useful things to be learnt at school and how this varies from person to person according to their social backgrounds and such. This is very true as there are different things that people may consider useful to learn according to how, when and where they are going to apply their knowledge and with what purpose. This is why people that live in the countryside might consider it more useful to learn about agriculture and kand labour techniques rather than learning about subjects such as Physics. If an individual comes out from a background such as this one and comes back with that knowledge, it might or it might not be of use for his or her community depending on what the future aims of this one are. For one part, by applying this knowledge to the community, the person might contribute in the development of the area by constructing or using some idea to boost the communities' needs. However, the person might come back and also find that his adquired knowledge could also be of little use as the community could be more concerned about their own tradtional activities rather than making advancements of these sorts, which is why the person's knowledge could be rendered useless they find another place elsewhere in which they can use this to its full potential.