How many different accounts do you have to delete though? For many of those people "t" and "f" would be substituted by "y"toube, "r"eddit, etc. It doesn't have to be a social media site, might be news you're intrested in, tech sites, deals aggregator.
I get what you mean, but for someone with habit of looking for distraction whenever they have nothing to do it won't be a cure, bandaid at best.
While I deleted all of my social media, I will still end up spamming on reddit or reading HN or watching Youtube.
But I have to say I find them better alternatives, as those social medias are nothing but people screaming for attention.
During work time I have an extension that blocks them all.