You may think young people cannot change the world, however they do! For example, Greta Thunberg, She is an 18 year old, activist from Sweden. And has been trying to make an impact on the world we are living in, global warming, pollution etc. Which proves my point, that young people can be leaders, and change the world for the better! However, about 100 years ago, people didn’t use plastic as much as they do in the 21st century and we wouldn’t have these problems. Carry on from there..