How different will our lives be in fifty years?

In fifty years, our lives will dramatically change. I can envisage that 80 year old lady serves us at Macdonald counter. I’ll talk about why I think so by using two points.

First, biotechnology or genetic engineering has opened possibilities that we might be able to prolong our lives for another couple of decades. With medical improvement, age to be over the hill is extended. The life expectancy around WW2 was 50 years old. Now it is over 80. It would extend to over 100 years in fifty years.
Age restriction is old-fashioned system before appearance of demographic imbalance. I believe we can expect huge merits from it. I’d like to shed light on two aspects here.

Second, the elderly compensate for lack of labor shortage. According to the demographic statistics, one in four in 2025 would be over 65 years old. Even now, we suffer from demographic imbalance. To solve this problem, to extend the retirement age can be good solution. The merit system has been installed for the last two decades. I believe the system is not a matter of age. Current 50’s and 60’s are still alive and kicking.　As far as people who are willing to work can bear fruit, they should be allowed to continue their career. Their contribution compensate for the shortage of younger work force.
In conclusion, the elderly play much more important role in our society in fifty years.