you should ask the question why people let her coins on exchanges!!
Because it is easier, and because people do not want install additional software, and also because an exchange can be accessed from everywhere.
That's why NEM would be a step forward to the others with a secure, easy constructed and accessible online wallet
Yes a kind of lite NCC version that does not require installation and does
signing in the browser would be needed.
I wonder if the current NCC can be modified so that it can be used like
a proxy to access any NIS without any security risk.
For example anybody could then runt NCC on vps and allow public access
to other users which could then access their funds from web or mobile without installing anything
and doing local signing so that the user that runs NCC cant access the funds of the users that access their
accounts i mean anybody could start their own "blockchain.info" then in few minutes

This would be cool.