Nobody forces you to use Moose or anything else. I happen to think Moose is wonderful because it gives you a very useful declarative constraint system in a dynamically typed language, and it does so without messing up your ability to use other things like Template::Toolkit.

But a lot of these things are not for all projects. I use Moose but not DBIx::Class in most of my projects.

I think Moose is wonderfully designed, but that's just me. you may differ in your opinion and build your own modules your way. There's more than one way to do it!