[i_like_to_post]

IPv6 was released in 1995 -- that's 25 years ago. If it didn't suck, don't you think we would have forgotten about IPv4 by now.

Or do you also have many devices around running Windows 95?

[detaro]

You claimed one specific issue with it, you don't get to play the "but it has other problems too!" (it indeed does) card now. It being badly designed in some ways is indeed part of the "other reasons".