​In the hypothetical utopian society where there is 100% equality, all material needs are met, economic inequality is eliminated, and work is driven only by prestige/belonging. The existence of prostitution—or commercial sex—would be highly debated and likely fundamentally transformed.
​Here is a breakdown of the arguments regarding its potential existence:
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1. Arguments for Why Prostitution Would Not Exist
The traditional view, particularly from historical socialist and utopian critiques, is that prostitution is primarily an economic and patriarchal phenomenon that would disappear in your described society.
​Elimination of Economic Coercion: The vast majority of people who enter sex work today do so out of financial necessity or desperation. Since your utopian society guarantees all basic needs and equal income, the main driver—survival sex—would be completely eliminated.
​Decoupling Sex from Material Gain: Without money or class differences, the primary transactional incentive is gone. A person could not sell their body for a better life, as everyone has the same high-quality life. The client also could not purchase sex as a display of wealth or power.
​Dismantling Patriarchy/Sexual Objectification: Many socialist and feminist thinkers argue that prostitution is inseparable from the sexist objectification of women's bodies. A true utopia, by definition, would have likely dismantled all systemic oppression, including patriarchy, removing the social structures that allow the buying of sexual "mastery."
​No Incentive for "Prestige": Prostitution, as currently viewed, carries significant social stigma and danger, which is antithetical to a "prestigious profession." It is unlikely to be valued as a contribution to the common good in a way that confers status.

2. Arguments for Why a Form of "Sexual Service" Might Still Exist
​Even with the elimination of money, some form of paid or transactional sexual service might arise due to non-economic human needs.
​The "Prestigious Profession" Incentive (The Core Twist): This is the key element of your scenario. If certain services are highly valued and the only way to gain status is to perform them, a form of sexual service could, hypothetically, become a highly specialized, regulated, and prestigious therapeutic or artistic service.
​Example: It could transform into a role akin to a "Sexual Surrogate Therapist," "Intimate Counselor," or "Pleasure Artisan." This role would demand high emotional intelligence, physical skill, and specialized training, thus commanding the societal prestige your utopia uses as its incentive.
​Addressing Unmet Sexual Needs: Even in a utopia, people would still have vastly different sexual desires and abilities. A person might seek a professional service for reasons beyond what a non-professional partner could or would provide, such as:
​Therapeutic Needs: Providing safe, consented intimacy for individuals with physical or psychological disabilities, extreme shyness, or complex emotional needs.
​Specialized Fetishes or Practices: Some people may have desires that are outside the norm of consensual, long-term relationships and would prefer a safe, transactional space for those activities, even if the "transaction" is just a social credit or the ability to request a specialized service in return (a non-monetary trade).
​Loneliness/Simple Desire: Some individuals may simply prefer the straightforward, defined-term nature of a professional encounter over the complexity of emotional or romantic pursuits.