In some cases, sex dolls may enhance a person's happiness, but it's important to realize that their impact on overall happiness varies from person to person, depending on personal preferences, needs, and attitudes. Here are some ways sex dolls may contribute to happiness:

For individuals experiencing sexual frustration or dissatisfaction, full size sex dolls can provide a means of satisfying sexual desires and fantasies. Sexual activity with a sex doll may provide temporary pleasure and satisfaction, thereby increasing happiness in the short term.
Some people view sex dolls as companions or companions, providing emotional support, intimacy, and companionship. Although a doll is not a sentient creature, it can provide a sense of presence and connection to someone who is lonely or isolated, potentially increasing happiness. These lifelike, functional silicone sex dolls allow those with autism to create an emotional connection and enjoy the pleasure that a sex doll can bring.
Sex dolls allow individuals to explore their sexual fantasies and desires without restrictions or judgment. They provide a safe and non-judgmental space for fantasies to be fulfilled, allowing individuals to experience joy and fulfillment in ways that are not possible with a real partner.
Using a sex doll can provide individuals with a sense of empowerment and control over their sexual experiences. They can explore their desires and preferences at their own pace and way, which may increase satisfaction and happiness.
Sex dolls often offer a high level of customization, allowing an individual to personalize the doll's appearance, functionality, and accessories to their liking. For example, some people with physical disabilities can choose the sex doll torso as an outlet for their sexual desires. This customization can enhance the overall experience and satisfaction, potentially increasing happiness.
In short, sex dolls can increase the happiness of some people, which also depends on people's needs for sex dolls. If our needs are met, then sex dolls can increase the happiness of our lives.