is life today better or worse than it was 50 years ago?

Firstly,people are healthier and live longer.For example,Mrs Li says we live longer today. However,there are too much traffic,and it makes more pollution,and makes people less healthy. Secondly,there are more tall and modern buildings and more shops.And there are faster transport. So life are more comfortable.For example,you needn’t ride a bike home after work,you can take a bus or even drive a car instead.But there is more fast food,it’s bad for our health.Thirdly,people have more free time,they don’t have to work as hard as before.Because machines help people a lot. And people can do more activities,such as going climbing and cycling.
In conclusion,I think life is better today than it was 50 years ago.