Yeah historians and archeologists generally have about a dozen ideas and wont discount or accept them till enough data has been collected. A prime example are those weird Roman dodecahedrons, where it could be everthing from a knitting instrument to a niche tool to something as simple as a nick nack. Though I think the knitting example is actually discounted because the type of knitting that was done with it was either not common enough to justify a specialized tool or not invented yet.

Anyways archeology is fun cause you can sometimes find new ways an artifact was used, like for example a helmet can be used as a helmet, a pisspot, or a bowl. This means we sometiems have no clue what an artifact was used for, unless they say fertility ritual then we know exactly what it was used for.