If you read "The Real Barenziah, Book II" A character essentially states that Elves do not easily get pregnant from other Elves. Possibly an evolutionary trait brought on by their long lifespans since a being that lives for multiple human lifespans getting pregnant as easily as a human would make for easy overpopulation. Think if humans at age 90 were still in their prime and capable of producing offspring, the only thing stopping overpopulation would be birth control and war.
Orcs are Elves that were changed when their leader was eaten by Boethiah and then his remains became Malacath so they may be under the same breeding constraint as the other Elves. Something like 95% of Skyrim's Orcs are loners, bandits or live in a stronghold. In strongholds only Chieftains can have wives and children. Bandits are unlikely to bring children, if they have any, on raids or a to a hideout. Lone Orcs fall prey to the xenophobia of Skyrim's Humans and especially Elves, they are also ugly as sin, making interbreeding rare if even possible.
Khajiit are not allowed into the Nord cities and hardly anyone is willing to even talk to them. Raising a child on the road with little protection is not something I expect of a supposedly clever race. Someone already stated that Argonians have to grow up in blackmarsh.
Orcs are Elves that were changed when their leader was eaten by Boethiah and then his remains became Malacath so they may be under the same breeding constraint as the other Elves. Something like 95% of Skyrim's Orcs are loners, bandits or live in a stronghold. In strongholds only Chieftains can have wives and children. Bandits are unlikely to bring children, if they have any, on raids or a to a hideout. Lone Orcs fall prey to the xenophobia of Skyrim's Humans and especially Elves, they are also ugly as sin, making interbreeding rare if even possible.
Khajiit are not allowed into the Nord cities and hardly anyone is willing to even talk to them. Raising a child on the road with little protection is not something I expect of a supposedly clever race. Someone already stated that Argonians have to grow up in blackmarsh.
