Carried itens put strain along the sholders and entire spine, and contribute to a high center of gravity. Waist mounted items (like this tail) put strain on only the hips and legs, and in the most stable way. I’d only be worried if there was a particular problem with hips or legs.
It would be far better for certain organic compounds though. Increase the effectiveness of drugs, eliminate side-effects, drastically cheapen the production of many componds making new products feasible.
But yeah, already living things would probably die very quickly.