First Betta :) Any Guesses On Age?

This is my first little guy. I bought him at a warehouse petstore. He was among the smallest and is about an inch and a half including flared fins. No idea if there is even a way to determine age but if anyone could tell me it would be this group lol thanks for any info! Emily

Well i'm not the best with bettas even though I have one I've seen baby bettas at my local pet stores and your I would say looks about two years old I'm not sure but that is my guess

The average life span of a betta is 2-3 years, so I doubt he's that old if he's small. His fins are pretty well developed, so my guess is about 6 months? Maybe a little less?

Thanks!