I want a paragraph in english on why old people are treated badly

You can include the following points in your paragraph:

• A decade back, joint family system was more prevalent in India.
• Now, one rarely gets to see a joint family. Nuclear families are more common nowadays.
• This system has given rise to loneliness among children and the elderly people.
• Grandchildren fail to imbibe the values that grandparents can offer them.
• Elderly are treated as liability by their children. 
• They lead a life of solitude in their old ages.