One of the disadvantages of having fewer languages is that it decreases diversity of different cultures. Every language has their untranslatable connotations or notions, which are inherited from their cultures. For instance, in Korean, there is a specific emotion that called 'han', which is similar to sorrow and grief, but could not be fully translated to other languages because the emotion is closely related to the country's history, which has suffered from numerous invasions and brutal colonization of Japanese Empire. If the languages unified, their unique thoughts would also be diminished.  

Moreover, having fewer language bears the intrinsic problem: Which language would survive, and which language would die out? In ideal world, people would choose the language through the most logical and rational process - maybe they would categorize and classify the language by its number of speakers and historical values and vote which language will be erased out - but in real life, it would not. Given the failure of globalizing Esperanto and the success of English as global language, it is likely that only the languages of politically or economically powerful countries would survive.  Then the languages of weaker, undeveloped countries would lost its power, no matter how fertile cultural background they have. 

In conclusion, I personally disagree with the opinion that with only several languages that exist in the world, life will be easier. I believe that the variety of languages ensure the diversity of society and enriching the culture, thus making one's life better. 

 

According to increase of retirement age, there are lots of old age workers in work area. Nowadays, most of tack related with using computer and internet, but some old age workers are not tend to cope with this task. So, only young workers are then to deal with huge amount of tasks. Unfortunately, these situation might cause young workers' exhaustion and quitting a job, and productivity also could be diminished.

 

Another problem is that retirees want to continue working. When they are retired, they could be still healthy so, they want to work and earn money to take care of their family but number of jobs for retirees are likely too less and limited to satisfy them. 

 

Usually they could take place some certain jobs, for example, apartment guards or collecting garbage.

 

There are various solution we could coping with these problems.

 

First, teaching how to work with computer and internet for old age workers. It could be great influence to their work are and their career. For instance, they can get refund academy fees when they learn something that is helpful for their work. It might be more motivate for them to learn something .

 

Second, discovering more reasonable jobs might be useful solution for retirees and their family. If they get a proper job, they may live more positive and enthusiastic. It could make them and their family lives are more healthier and brighter.

 

Secondly, the aged society has a number of chronically ill patients who are suffering from diseases caused by aging, for instance, Alzheimer's disease, or osteoarthritis. These patients need specific treatment and medication, which requires considerable amount of money and highly specialized workforces. Judging by the number of doctors who are specialized in aging-related illness, it is unlike that the current health system can cover up the increased number of patients. 

Possible solutions for these problems would be hire the elderly for the public-sector jobs and to expand national health care service by training health care workers. Firstly, if the government hire the elderly as simple labour workers, for instance, a call centre staff, it would less the financial burden of the younger generation and even further, make the older people feel less dependant, and more confident about themselves. 

Secondly, promotion of fostering the health care workers can benefit the elderly with better quality of treatments. Furthermore, the expansion of the national health care service will also stimulate the private medical market, which can lead to the increased opportunities for job seekers.