Whether someone inherits or bequeaths property makes a significant legal difference.
This becomes clearer when the testator sells the property after the will has been written. So, how are you legacy generally inefficient, i.e. the thinking person gets nothing at all. the to inherit on the other hand, they can still hope that the deceased will live frugally until his death and that there will be a sum of money left from the capital gains on real estate which he will inherit afterwards.
The testator must therefore specify in the will whether the person concerned will be the heir or the legatee. Courts can interpret wills and determine the true will of the testator. But there are always surprises.