I think the most valued stages of life cycle are studying at school and then at university/college/...At school ( especially in last grades ) we start thinking about our future, we are kind of trying to predict it. At university/... we are practically independent, we have to solve our problems oursleves, and certainly we build parts of future life, life with own family, learn about earning money and supporting ourselves.

No ....It's not

Looks very much like an assay question from your current English course/University...