Need a quick grammar check here

I agree with the above assertion addressing the possibility of problems in various degrees of severity arising from having to speak the local language in a foreign country. That is logically possible as there are factors that might contribute to the difference across individuals in such a situation.

It is already known that some people are not as bright as the others and so is the level of education that some individuals might have received in comparison with the others. People who do not have enough of either one of the aforementioned attributes, moreover both, are usually bound to fail to use a foreign language when communicating with foreign people and it can definitely be disastrous for either side. An example of such a situation would be when the poor person is in another country where the common language is completely different and then there is a local coming up to him and remind him with a grumpy face about the trash he threw carelessly on a nearby clean public street. And then the poor person thinks that the local is messing with him, from the angry-looking face the local makes. Therefore they fought and it results in them being put behind the bars or even hospitalized.

However, there are still ways to diminish the chances of such problems arising, some of which are to warn the local interlocutor every time at the beginning of a conversation that we can't understand their language yet. That way, the local will likely tolerate the misunderstandings that might happen. Another way would be carrying a dictionary all the time until we understand the foreign language well enough.

All in all, I believe there is no way to eliminate the possibility of problems arising from such a situation because almost every individual is different from one another and humans are bound to make mistakes.