Are you referring to camping as outdoor entertainment? If so, disadvantage to health would be not knowing what you were doing and getting lost, or getting eaten by a wild animal, or any of a lot of ways to get hurt if you aren't paying attention. Learning a few basics, paying attention to more experienced people and learning situational awareness will remove most negative outcomes. Financial negatives you will spend good money for cheap equipment. Decide you really like camping and then spend more money for better equipment. There are no social or environmental disadvantages if you learn basics. Camping, hiking, and backpacking will greatly increase your own self esteem, confidence, and a few days in the wilds without a lot of electronics will reset your body biometrics making you feel better, think clearer and much easier to get along with.