Will the 32 ETH requirement for running a validator ever be reduced?

Having such a high requirement for running a validator node decreases decentralisation because most people will use centralised exchanges and staking pools to stake less than 32ETH. This would create a situation similar to bitcoin mining, where the top 5 pools control most of the hashrate. Will this requirement ever be lowered or are there technical reasons as to why it has to be 32 ETH?