People from a young age should think about their retirement and have money aside for old age when their body has been deteriorated, and they are no longer able to work. Therefore, they have to plan saving money to be able to survive in their place of residence.
Real states could be a good opportunity for retired people. However, you can't predict the real state in the short term, but in the long term it is obvious that it has an upward trend.
You have to learn to diversify, which means not only buy the real state of your choice, but also buy other forms of investment as well as land, stocks, bonds, etc. You know that if the market gets too low, you lose not too much of your money.
You have to choose the right real estate: like for example in what neighborhood it is located, is it a bad neighborhood or a good one, does it have buyers ready to buy that property if you needed to sell and get cash. Real estate agents can help you in that area. They can tell you about the potential your property has for rental income. This rental income can really help you for living expenses.
You have to take care of your property (don't let it all by itself, if it needs repair for example, tend to it, don't let it deteriorate especially if you buy old houses consider repairing and renewing them so that you can sell them with a higher price. If they look nice and polished, it is more probable to sell it faster (of course, if you want to sell it)
You can use leverage such as mortgage to buy property and land, but you have to be able to afford it, don't risk it if you can't afford it.
Set aside an emergency fund for repairs and stuff like that, unexpected stuff.
In this way, when the property increases in price, you have built wealth for yourself.