Should people wear uniforms?

[Tdol]

When you make your turning, you talk of out-of-date uniforms, yet reflective patches, etc, as worn by dustmen don't strike me as out-of-date.

[RonBee]

Therefore, they take workplace seriously and behave in the same manner.

They take their workplace (and their jobs) more seriously because they wear uniforms?

That would particularly benefits those huge companies with a considerable amount of employees who usually engage in manual work, since if it were not for uniforms, managers would hardly identify what positions workers take immediately without checking their ID card and make workers work in their workplace automatically.

We can easily identify what job a person performs by what uniform that person wears?

[RonBee]

By "turning" do you mean a transition to a different subtopic?

[RonBee]

On the other hand, undeniable is the fact that uniforms still have some drawbacks such as their old-fashioned styles and inhibiting people’s freedom from selecting others favorite clothing.

Prease rewrite that.

However, some out-of-date uniform could be more functional. For instance, dustmen in cleaning companies would be in safe situation when they work at night on the road wearing a reflectible uniform, for cars that pass by could discover them by glancing at the light reflected from their uniform.

Why would dustmen be on the road at night?

Guarders from guarding companies would be secure by wearing a bulletproof jacket, a kind of uniform. Moreover, today’s uniforms have become increasingly fashionable because many companies felt obliged to improve their impressions.

Try:
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Guards employed by security companies would be made more secure by wearing bulletproof vests....

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Say:
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many companies felt obliged to improve their images.