Bitcoin unit

Right now bitcoin unit is 1 bitcoin. Given the price, if you spend $500 you can purchase roughly 0.007 bitcoin. Just the idea of 0.007 sounds very depressing for anything, but 700k satoshi would give a different impression otherwise. If the unit is normalized to satoshi, this allow people to reduce the mental barrier of buying something mathematically so little and feels like they are owning more.

What is preventing the bitcoin community to push to normalize the unit to satoshi from bitcoin?