It is a natural thing for teenagers to fantasize and dream. They don't have much liabilities and burden at this stage of life so they are free to dream which is sometimes impractical and non-realistic. It is a part of their lives but sometimes these dreams have disadvantages.
In the story 'Going Places', the author has described the feelings and dreams of such a teenage girl. Sophie, who was a school going teenager, was a day dreamer who fantasized about her future life with Danny Casey, an acid football player from Ireland. She dreamt of having met him twice in the arcade. For her, he was the hero to be worshipped. Then, she thought of owning a boutique. She was blind to the bitter truth of life. She dreamt of an imaginary life, full of beautiful things. She also dreamt of becoming an actress as there was a lot of money and fame in that profession. She wanted to be a fashion designer too. It can be said that she wanted to lead a lavish and grand life which was not possible. Her dreams were unrealistic in the sense that ultimately she would have to work in a biscuit factory. Thus, we can say that she wanted to achieve the things which were quite impossible but there's nothing wrong in fantasizing. All teenagers have these overreaching ambitions. They love to fantasize. Sophie is no different.