Everybody is different, significantly so even. They have different personalities, different educations, different ways of working, different skillsets, different passions, etc. That's why people have different jobs, different hobbies, different friends, different ways of living, and why people do their jobs in different ways. Saying "freelancing will be like THIS" is about as silly as saying that if one were to start painting their experiences would be identical to Van Gogh's, or Michaelangelo's, the likelihood is comparable. I've seen people of equivalent intelligence, equivalent education, equivalent cultural backgrounds doing the same exact job for the same exact salary and having experiences as different as imaginable. Working in completely different ways, generating completely different results, taking completely different degrees of personal satisfaction from their work, working different hours, and having completely different levels of work-related stress.
That's humanity for you. There's a huge degree of diversity out there, and that's true in every career path, don't insult us by pretending that freelancing or working a cubicle or any other human experience can be summed up in one tidy little package with minimal deviation.