The claim that blondes have more fun is quite a bit misleading and not entirely true. However, there are some factors of blonde hair that could potentially lead to a sense of happiness or positive attitude.
In the article, Mihai Andrei explains that "a researcher at Nottingham Trent University who conducted the study, analyzed more than 200 women before and after they dyed their hair, and concluded that lighter locks actually lift the mood for most." Although that doesn't really mean blondes have more fun, it could convince some of that. Then again, "Not only were their confidence and mood levels elevated but also their inhibitions seemed to be mitigated with many reporting feeling more attractive and sexually exciting. Across the board participants viewed colouring their hair as something that raised their confidence." To reiterate, many people who try something different with their appearance tend to gain some confidence. As a rebuttal, fresh new looks with any hair color are bound to be a boost, not just blondes. Given that, it doesn’t prove that just by being blonde, you are automatically more fun. It more so discusses the confidence and mood boost resulting after dying your hair or being perceived as conventionally attractive to society.
In a separate article, Catrina Prager poses the same idea that "it seems blondes have the lead when it comes to attractiveness. But does that mean they have more fun?" She then responds with "Arguable. Being considered attractive is going to be a mood-booster, and may make you happier and more confident." In a sense, being found attractive or powerful could make one have more fun. But to be clear, that isn't guaranteed if you choose to dye your hair in search of that mindset.
Society likes to spin the truth of many different ideas, and blonde hair is often a topic of discussion. Since the opinions of others are heavily impactful on the way people think, it is no wonder why the original claim surfaces so frequently.
Despite popular opinion and the claim that "blondes have more fun," it isn't true. Anyone can feel confident, powerful, and fun! Not only that, but also be seen as attractive, no matter the color of their hair.
https://www.zmescience.com/research/studies/blondes-really-do-have-more-fun-study-shows/
https://catrinaprager.medium.com/do-blondes-have-more-fun-heres-what-science-has-to-say-b2325bd879b2