I’m not so sure. There’s plenty of accounts of ancient warriors using ridden horses as transportation. It probably has more to do with a chariot being more compatible with horse/soldier training and soldier gear at the time. Riding a horse into battle takes a lot of unique training and gear, and camels were the better option for a lot of the latitude around North Africa/Middle East, where you had ancient empires with the ability to research technology.
The idea that horses had to embiggen, I think, comes from the Persians. They wanted the world’s first heavy cavalry and they certainly needed bigger horses for a fully armored rider. But light cavalry has evidence dating back to at least 5,000 B.C. thanks to the proto mongols. (Central Asian tribes before they were united)
I’m not so sure. There’s plenty of accounts of ancient warriors using ridden horses as transportation. It probably has more to do with a chariot being more compatible with horse/soldier training and soldier gear at the time. Riding a horse into battle takes a lot of unique training and gear, and camels were the better option for a lot of the latitude around North Africa/Middle East, where you had ancient empires with the ability to research technology.
The idea that horses had to embiggen, I think, comes from the Persians. They wanted the world’s first heavy cavalry and they certainly needed bigger horses for a fully armored rider. But light cavalry has evidence dating back to at least 5,000 B.C. thanks to the proto mongols. (Central Asian tribes before they were united)