Utilitarianism is a philosophical aspect that supports the execution of actions that you use, that aim at a useful result that provides pleasure and happiness.
The adoption of utilitarianism by individuals as a moral principle is somewhat controversial and should be debated, since it shows two very different aspects about the advantages and disadvantages of this adoption. On the one hand, we can defend the adoption of utilitarianism as a moral principle based on the presupposition that an individual who does this will practice actions that promote the beneficial growth of society and social relations, since these elements have collective uses and will promote pleasure of countless people at the same time, even in personal activities, the individual will be able to practice what is good, healthy and beneficial, moving away from sadness and pain and thus contributing to the whole environment around him.
On the other hand, the view of what is useful and pleasurable for each individual is variable. This shows the danger of adopting utilitarianism as a moral principle. Morality itself can be very relative among individuals and this can promote the performance of selfish and maleficent activities that bring pleasure to only a portion of the population, to the detriment of the rest.
With this we can conclude that there is no absolute truth about whether the adoption of utilitarianism would be beneficial or maleficent. This is the result of human psychological and emotional variation, which allows for a diversity of the individual view of what is good, moral, useful and pleasurable.