Why do the Hebrew Alphabetic Presentation Forms Exist

[abrahamgross at disroot.org]

They all share the value of 30

2020/06/04 午前3:28:51 Marius Spix via Unicode <unicode at unicode.org>:
> It also appears that there are more variants of lamed with special
> meanings in the bible:
> https://www.hebrew4christians.com/Grammar/Unit_One/Aleph-Bet/Lamed/lamed.html
> 
> Can someone confirm that all variants of lamed have the same numeric
> value of 30? If it is different between the variants, that would
> qualify for different characters.
>