A study conducted by researchers at the University of Toledo in Ohio, which was published in the journal "Infant Behavior and Development" in 2017, looked at the topic if kids are really happier with fewer toys. The study involved toddlers and showed that when young kids are provided with fewer toys in their environment, children engaged in longer periods of play with a single toy, allowing for better focus to explore and play more creatively. This does not mean that all toys should be removed, but the study does suggest that an environment with fewer toys can lead to higher quality playtime. So, there seems to be some evidence suggesting that fewer toys might make for happier, more creative kids!