Perfectly manicured lawns and open green spaces. Everyone has a purpose. Housing and facilities are planned to meet needs. Walkable environment where cars are often times banned. Wifi everywhere. Health services are provided for all residents. Maker spaces are still a thing on campuses providing access to fabrication equipment, 3d printers, etc. Libraries with access to any book or journal article you could want. There's a strong sense of community and comradery - even strangers feel connected to one another. Even the police are nicer, as they try to build a lot of good will with the community.
It's easy to meet people and engage in activities and hobbies. You can walk to a show put on by the local orchestra or drama group, go to a game played by the local team, eat food prepared by the local culinary students, or visit an art exhibition featuring world-famous or local artists. Or you can get involved in any of these activities by playing music or sports or making art!
And that's not to mention the world-class lectures and research that happen all the time.
When I graduated and went into the "real world" I was isolated and alone. Everything felt so chaotic and unorganized, and a huge step down from the kind of close community I was used to. In the "real world" everything seems centered around commerce and consumerism instead of people. I was unable to find anything like I had experienced in college, so I just went back and never left.