maybe but there was a different between them I think that western union is a remittance center and bitcoin is a cryptocurrency. we can earn bitcoin with the help of the internet while in western union we are just sending our money to pay bills or to give money in our relatives out there.
Exactly, I don't know why people keep comparing two totaly different things like Bitcoin and Western Union and Bitcoin and PayPal. Like they don't know the difference between currency and money service. Western Union is money service that could also be used for transfering Bitcoins, the problem is that they don't support it yet.
So, you can compare Western Union with PayPal or Moneygram or Skrill but not with Bitcoins.