However, I feel it is important to raise a few additional points to note, and to answer some of the justifications I have heard from proponents of capitalisation. There is absolutely no empirical evidence to suggest that braille users are any worse at using capital letters in their production of print, than are their sighted peers. If there is a suggestion that this might be the case, it is pure supposition. There is no empirical evidence to suggest that having capitalised braille would significantly improve braille readers' use of capitals in print. In fact, this kind of research would be extremely interesting and possibly tell us much about the psychological relationship between the use of print and braille.
Anecdotal evidence seems to suggest that, when braille is capitalised, one of two things happens.
Either, reading is significantly impaired, with slower reading and more effort required for comprehension or, particularly with very fluent readers, the capital indicators in the text are ignored or suppressed. I would suggest that neither of these scenarios promote the learning of capitalisation rules. It has been suggested that we need to know where capitals appear in E-mail addresses. As you are probably aware, there is an increasing tendency on the internet to use only lower-case. We can, after all, interpret E-mail addresses and the like perfectly well when they are announced on the radio.