Hello,
Here is a brief bit of information that might be useful. There are two issues that are more important to us in regards to the genetics of figs. One is sex and the other is persistence vs caducous (trees that will make figs without pollination and those that require pollination)
1) Sex
1a) When a fig (female) is pollinated with a caprifig, half will be female and half will be caprifigs
1b) When a caprifig is self-pollinated or when two caprifigs are crossed, the ratio is one fig (female) to three caprifigs. (it is unlikely that you will be dealing with these sorts of seeds
2) Persistent (making figs without caprification) and caducous / Smyrna types (figs that require caprification or pollination from a caprifig)
a) caducous fig x caducous caprifig = all caducous (Caducous caprifigs are the common caprifig and are home to the fig wasp. These are the caprifig types used to pollinate caducous female figs, aka Smyrna types such as the Sari Lop aka Turkish dried figs, etc. Caducous caprifig named varieties include: Stanford, Roeding #3, Roeding #4, etc.)
b) caducous fig x persistent caprifig = half caducous and half persistent (persistent caprifigs are rare in nature but have been found and are used for breeding programs. Varieties such as Saleeb, Croisic / Gillette, Enderud, Capri Q - are examples. These figs are not good homes for the fig wasp though, and artificial pollen transfer is required. Many of these caprifigs are edible, some better than others.
c) Persistent fig x caducous caprifig = all caducous
d) persistent fig x persistent caprifig = half caducous and half persistent
So here are a few hypothetical situations that you might encounter.
1) If for example you were using seeds from a dried fig that you purchased at the store you would likely be encountering a caducous fix that was crossed with a caducous caprifig which would result in all of the progeny being caducous and of this batch, half will be female caducous and the other half caprifig caducous. You will not get any figs that will be persistent and unless you live where the fig wasp lives or have access to pollen for manual pollination - you will never see any fruit.
2) If for example you were using seeds from a persistent female fig (the common edible fig) that was pollinated by a caducous caprifig (the most common situation) then you would still end up with the exact results in the example above. You would never get fruit.
It takes having persistent caprifig pollen to have a chance of creating a persistent female fig and then you are entering another realm where many possibilities of variability exist - variation in taste, size, color, good for drying or better for fresh, could be insipid, etc. So, if you have any desire to plant seeds and possibly create a plant that will make fruit, you should get a persistent caprifig and do some breeding by hand.
You asked about any other good reason to grow fig seeds. Here are some.
1) As discussed, creating a new fig is possible, but will take a lot of space and time and you need a proper persistent caprifig
2) It might be fun just to grow some figs form seed!
3) Figs grown from seed will be free from mosaic virus. If one had an interest in having some clean rootstock for grafting, this might be a good experiment. This would also require some complex steps to obtain a virus free scion - that is another topic.
I hope that this helps (I hope that I explained it clearly). It does take reading and studying the material to get a grasp of what is going on. Not always easy to pick up the first few times of reading. It has taken me a while to digest what is going on.
Ingevald
p.s. One of the best explanations of this aspect of fig genetics is located in the book 'The Fig' by William Storey, Julius Enderud, Wadie Saleeb and Edward Nauer published by the Jurupa Mountains Cultural Center. Copies can be obtained from the CRFG.