Gear shifting and clutch movement in two wheelers using hands

Vespa previously used a standard left-hand clutch with a twisting bar end for gear selection in scooters before they switchted to cvt. It generally for easier use and uniformity has been left foot controled for shifting(spreads the workload out amongst the controls). Jockey shifts can be installed however they are not as safe. With the manual having the transmission case attached to the engine below the rider it would require a much more complex linkage system to connect the transmission to the handlbar area. This of course excludes air shifters which are used in racing and elctroinc shifting which is really an automatic transmission. What are your reasons to develop a different layout?

ponraj😛 Dear friends,
give me some idea about both gear shifting and clutch movement in two wheelers using hands 😕

many has done it in bullets in some other way,
they have extended d gear lever and pulled it up side (like some handicapped vehicles have kick in hand).
it looks very attractive and different.

if we operate clutch by hand then wts automatic in it?only diff is that we shifts gear hands instead of paddle shifting