So are you asking to abandon sigils?

ehh no, sigil is the spirit of perl. no sigils no perl. what I mean is perl allows a same name but different type. and It's also a good feature but perl sacrificed much performance for it.

for support this feature, perl have to create a 6elments hash to store one name. see below:

like a package scalar variable: $FOO = '123';
actually store:
*Foo{SCALAR => '123', HASH => '', ARRAY =>'', GLOB => '', PACKAGE => '
+', NAME =>''},
[download]

If we discard above feature, we could store a scalar on STASH directly. To me it's more understandable and maybe faster.