This question already has an answer here:
I couldn't find a duplicate-like of this question. I'm also not sure whether this is an electrical engineering question or a physics question.
As most of you noticed when one needs to use larger capacitor values the type of capacitors available to use are polarized capacitors such as tantalum or electrolytic capacitors.
What is the relation between large capacitance and being manufactured polarized? is that the same reason: if we ask why are capacitors with small values are manufactured non-polarized?