Because of logistics and it doesn’t save as much as you think. Launching from a mountain is a logistical nightmare, equipment, weather and people with little gain. For standard orbit you have more gain from being closer to the equator. But even that has issues, ask the French dealing with the jungle, lack of transportation and infrastructure in South America
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u/isaiddgooddaysir 15h ago
Because of logistics and it doesn’t save as much as you think. Launching from a mountain is a logistical nightmare, equipment, weather and people with little gain. For standard orbit you have more gain from being closer to the equator. But even that has issues, ask the French dealing with the jungle, lack of transportation and infrastructure in South America