And what happens with the likes of the elderly and disabled?
RM was working fine, then the government sold it off having cut it's staffing levels to the bone and made sure private companies could leech most of the profit out of it.
Post should not be for profit, it is a service that is required for pretty much everything from your local GP or hospital to contact you in a timely manner, to the police, your insurance, the tax man (and pretty much every other government department).