How can the elderly live happily in today's society?

In fact, many people now, the empty nest elderly life imagined too much, bleak or lonely, but now the old people live are really happier, their time schedule is full, and sometimes even do not need to do our children's worry, like my parents, every day is to go to the mountains to ride a bike, and then go to the gym, and then there are to go swimming, and at night to go to the square dance, they put their own Life is full of arrangements, so that they have enough time to enjoy life, I think like my parents do, really can be very very happy to enjoy the old age.