What do you think are the advantages and disadvantages of living up to 100 years old?

Nowadays thanks to the improvement of the medicine and the basic conditions of life, like a better and healthy life, the places where we can live...etc, the life expectancy has increased and some people live a lot of years and also some of them live up 100 years old.
Living up 100 years old is an advantage or a disadvantage?

On the one hand, there are some advantages like enjoying more about your family and meeting your greatgrandchildren.
In addition, you can see the improvement of the society or the transformations in the city where you live when you were a child......

On the other hand, a person who lives 100 years has healthproblems and dificulties to move correctly. If there are lots of people who live up 100 years, the poblation will be old and there will be less children.

Finally we have seen the advantages and disadvantages of living up 100 years and in our opinion it is better to live 100 years in spite of the disadvantages it has.