Saw an article where Google uses 3 languages routinely: C++, Java, and
Python.
(All 3 are object-oriented)
Special permission was needed for other languages
I think one reason for the OO movement revolves around the cost of
development.
Large projects -
with many developers of varying degrees of competence -
are easier to manage
using OO design.

If someone gives a coder a job like:
"write an instance method for xyz class which will take 2 int args and
return a abc class..."
he can go right to work. -and -
someone else can be coding a different method for the same class.

regardless of the language
when you code
you'll find some patterns
we all use
over and over
the difference is
syntax