children have already started their own families and careers. With their own family and career, it is impossible for them to accompany you every day. You are far away from society and are not as busy as you were at work. Talk to those colleagues and friends.
so when people get old, they should have their own spouse to rely on each other, care for each other, keep warm with each other, and have things they like to do. They especially need to go out and never leave society. There is hope and hope every day.
If you have the conditions, you can open a cigarette paper shop, grocery store, or small teahouse, so that you can be in a semi-working state without shortage of personnel movement and communication. Those who are at home can raise flowers, grow vegetables, and raise pets. You can also write, draw pictures, sing, go to class, play the piano, and of course you can also be a charity volunteer to serve the society.
In short, don't let yourself be idle. You must live in hope and dreams... Even if this dream is unrealistic, you still have to persevere. This will continuously release adrenaline , which is beneficial to physical and mental health. As long as you are not sick, you will not drag down your spouse's children, you can eat and sleep, and have something to do! I believe you must be the happiest old man!