It's because you don't live in the EU. Millions of people have had instant money transfers for years now.
In fact, among the interesting properties of Bitcoin, I'd rate transaction speeds as the least relevant - chiefly because network throughput and transaction speed is actually pretty poor if you compare it to what is achievable with classical tech.
This is one of the reasons crypto is a great solution though. You don't have to rely on institutions for the infrastructure.
I agree that there's no technical reason. For example, "crappy infrastructure" is an economic reason why fast bank transfers wouldn't work. I'm evaluating bitcoin as a political/economic tool.
Honestly, how much money one needs to move that the cost of the operation actually matters?