A currently-nameless conlang sketch based on a core question of "What if a language considered all nouns grammatically as mass nouns?"
All nouns in a sentence are given their own classifier. These classifiers are auxiliary nouns with semantics relating at least vaguely to what they classify. It is a system somewhere between a proper noun-class gender system, and like how English constructs phrases for mass nouns such as "a drop of water," or how for fossilization reasons, French uses a generic "pas" in the negative "ne pas" despite "pas" meaning "step"
For an example of this system, imagine the sentence "I have three sheep in that pen." We would gloss that roughly as:
pen(LOC) 1PS own sheep 3 coat
Although many classifiers come from a more generic list and see frequent use on less common nouns, a few more ubiquitous nouns in common parlance often have their own dedicated classifiers not used in grammar elsewhere, hence sheep being paired with "coats" rather than a more typical "hides" or "heads"
Many of these more specific classifiers have to do with trade and everyday work, and thus are called into conversation at a heightened rate. Tools, livestock, furniture, etc. Nouns that do not need to be counted on a regular basis often have non-1 classifiers, such as "four legs of table," or "two blades of shears"
(As a final note for now, I'd like to mention the working code name of "object language" is indeed a programming reference to object-based programming languages)