[euyyn]

> Some languages lack of providing an appropriate aggregation alternative generally keeps inheritance alive.

I might not be understanding well, but are you talking of languages that happen to have no _composition_? But do have inheritance? Sounds like those with inheritance are a strict subset of those with composition (which in turn would be all but fringe languages).

[dyarosla]

No I'm talking about a lack of language constructs that make composition a pain and inheritance a quick fix: forwarding. Inheritance is often used improperly because writing forwarding methods to delegates is a pain. IS-A/HAS-A goes OUT-A the window: in many cases ushers developers to adopt it because it requires less typing.