You must go to work during the holiday. When they are all working, they do it at home. Anyway, you are so old, be careful and nothing will happen.

When you figure it out, make a big meal to show filial piety and impress them.

Then tell them that everyone needs to learn the ability to take care of themselves. No one will do this and that when they are born. After they go to college, their parents can't take care of them. You can't starve to death alone. If you look for a job in the future and have your own small family, you can't buy food at once.