>>64119784
>horses won't charge into spears
They won’t if you don’t train them to.
More importantly, people won’t charge into spears if you don’t train them to. Or at all, if they can help it. Charging full speed straight into a fresh, unbroken spear wall without softening em up first is not a good idea. That’s why pike squares were popular, because it’s an effective defense against cavalry. It’s also why for a period of time you see cavalry with super long lances, and eventually just pistols.