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For people with reduced vision, the same accessible lavatories have indications in Braille.
In the event that the plane only has common lavatories, the problem would not be serious since with the help of a family member or the personnel on board any difficulty could be solved.
Some people with cognitive difficulties need assistance to use the sink.
In this case, the accessible ones are ideal due to their additional space that will allow us to enter the bathroom together. In normal sinks it will get a bit complicated but we can also help them.