I've told you before about local authority statutory care run by local authorities. Ask for help and they say they haven't the staff to help. Nationalised care via local authorities stinks. I can also tell you about nationalised trains. I used to catch the 06.40 out of Cardiff to Paddington up to 5 days a week. The service was abysmal and only improved when BR were competing for the contract which they eventually lost. I know costs have escalated but use of the trains has increased markedly over the years. However, I think ticketing should be centralised.
As for nationalised electricity power cuts due to industrial action were the order of the day. I remember well cooking a meal and boiling a kettle on a camping stove. Thank gawd those days are over. If you don't remember those days you must be younger than I thought. Just imagine if secondary picketing and workers holding the country to ransom. That's nationalisation for you.