First of all, whether married or not, a person needs to have enough economic reserves and good health in his later years. This can be achieved through early planning and a healthy lifestyle.

Secondly, if you don't get married, you can consider living with friends or family members, or choose to join clubs or other organizations to make like-minded people. This can avoid loneliness, increase social activities and expand the circle of life.

In addition, you can consider taking part in volunteer work, or taking part in activities such as traveling and studying to enrich your life, learn new knowledge and make new friends.

Finally, you can also consider keeping pets, such as dogs or cats, so that you can have a companion and care object, and you can also exercise and improve your happiness.

Generally speaking, a person's old age can be full and happy, and it is not necessary to get married to achieve it. The most important thing is to keep a positive and optimistic attitude and constantly explore new possibilities.