>>8411754In the UK the Royal Mail was once controlled by the gov't, privatisation made it significantly less reliable.
The rail system was gov't controlled, it became privatised and started to collapse (just research northern rail).
I could go on but I believe amenities & financial stability should be held by the government otherwise one day you wake up in a horrifying dystopia where large companies like Facebook, Google, Twitter etc have more power over the populous than the government they elected.