Most times, this depends on the economic situation of a country, the availability of jobs on the labor market, and the morals children learn in their individual homes. It is never a bad idea to start up our savings plans for the future so that when we are old, we will also have something to rely on when we are retired and not strong enough to work again.
Why I made mention of family morals is because, when we give birth, we take care of our children, give them the best education or skills, and groom them in a way they could also grow to have their own family. the process of giving our children the best education and skills so they can explore, and if they start working or making money, they can also take care of us in our old age.
Why I also mentioned the economy of the country and the labor market is because in most countries, it's difficult to get a well-paying job.
I will use my grandpa as a typical example. He was the father of eight children, and while he was working as a civil servant, his salary was not much, but he managed to send all his children to the highest institutions. Two of his sons are lawyers, one of whom is a solicitor in Scotland
https://i.imgur.com/yhRJRrJ.jpg. When my grandpa was working, he did not make any future investments for himself; all his investments were in his sons and daughters. He could not even build a house in the city, but today one of his children has built a duplex for him and my grandma in the city. It's been about 15 years now since my grandpa retired, and even the pension he is receiving is not consistent because the state government doesn't pay every month; some time they owe him up to two or three months before paying. But my grandparents are not lacking anything because their children have well-paying jobs and are always sending money to my grandparents parents. I also send money to them because I was raised by my grandma.
So what I am just insinuating is that giving our children the best education, morals, and skills could also be a future investment in the sense that when we are old, they can provide for our needs.
In life, one thing is for sure: no one can predict the future, so it is good to always have good plans tailored out, like still making other investments. Someday our children will grow up and have their own family, and if they don't have a well-paying job by then, they will also be struggling to take care of the needs of themselves, their wives, and their children. If we, as their parents, are relying on them, we could be disappointed because it's going to put pressure on them and could lead to some family misunderstandings.