It would also be possible to have presented a separate body paragraph, each with the advantages and disadvantages, but you would need to be careful not to write too much and possibly run out of time.
Most people are having to work longer hours and often both parents work, so they simply do not have as much time to spend with each other as they did in the past.
Another factor is the materialistic and consumer driven culture we now live in, which has led to less value being placed on family relationships.
Modern technology also means that people are more interested in their online life than interacting with their family in their free time. If people are not so close with their family, they are free to pursue their own dreams and aspirations, and to focus on improving their own lifestyle.
However, I believe that there are far more negative outcomes.