Life is a stage in which there was a time when aged people were caring for younger people now it is the time for younger people to care for aged people. Aged and dependent people need the support of younger people to live a comfortable life. Just as you have said we can help them in shopping, cooking, making them feel happy by staying closer to them through talking with them and so on. I could remember my grandmother how I and my cousin used to make her feel happy. Thanks for inviting me and good luck to you.