Republicans are bowing out of presidential debates. Good.

It's official. After previewing the move for months, the Republican National Committee (RNC) has announced an official boycott of the Commission on Presidential Debates (CPD), which has administered the quadrennial events since 1988. The RNC isn't completely rejecting debates, which RNC Chair Ronna McDaniel described as "an important part of the democratic process" in her statement. But it's not clear whether the CPD is willing to meet Republicans' demands for reform or Democrats are willing to bypass the commission, leaving the future of the exercise in doubt.

That's no great loss. Although they've become centerpieces of the campaign, presidential debates are a fairly recent innovation. The first series wasn't arranged until 1960. Due to the perceived risks of the exercise, demonstrated by Richard Nixon's uneasy performance in his opening encounter with John F. Kennedy, no more debates were held until 1976.

In that election, 1980, and 1984, the debates were organized by the League of Women Voters. The CPD was established by the major parties in 1987 to secure more control of the process and exclude minor candidates. Since 1988, the commission has experimented with various setups, including the "townhall" format that had then-president George H.W. Bush checking his watch in 1992. But the format has remained the same: two candidates on a stage, responding to questions posed by one a famous television news presenter.

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We call that a "debate," but it's really not. In classic form, political debate involves speakers taking opposing positions on a fixed proposition. That's what Abraham Lincoln and Stephen Douglas did in their famous series of joint appearances leading up to the 1858 senatorial election in Illinois. For a more recent example, consider this 1978 debate staged by the PBS show Firing Line, whose participants included nominee and president-to-be Ronald Reagan.

Real debate is a showcase for speakers' knowledge, poise, and rhetorical fluency. It doesn't prove they're suited to govern. But it does indicate whether they have a clear position on some important issue and are capable of defending it.

The awkward group interview we call "debate" does little of the kind. The question-and-answer format either gives the speakers free rein to select their own topics or degenerates into tit-for-tat exchanges between participants or with the moderator.

The tendency of moderators to challenge or correct candidates, rather than merely keeping time and maintaining the flow of questions, is one of Republicans' current grievances against the CPD. But it's not a recent or specifically partisan concern. In 1988, Democrats were outraged when CNN anchor Bernard Shaw opened the second debate of the season by asking Michael Dukakis whether he would hypothetically favor the death penalty for the rapist and murderer of his wife. Rather than an invitation to the candidate to make his case, the question seemed like a set-up to make Dukakis seem out of touch.

The limitations of the format might be forgiven if debates were important to voters. But political science research suggests that's not the case. According to recent studies, only about 10 percent of voters choose a candidate based on debates. The vast majority make up their minds weeks or months in advance. And the relative lateness of the debates underlies another reasonable complaint about 2020 in particular: With many states extending early voting in the general election and the first debate not held until September 29, a significant portion of ballots had already been cast by the time Donald Trump and Joe Biden took the stage.

When debates make a difference, finally, their influence may have less to do with their actual content than with media narratives about them. Because candidates' statements are usually vacuous, journalists tend to emphasize superficial qualities of vocal tone, body language, or diction. It's been said that if you want to know who "won" a debate, watch with the sound turned off. That's an indictment of the whole exercise.

Maybe Republicans will patch things up with the CPD before 2024. Or maybe the parties will establish a new structure, as they did in the late 1980s. It wouldn't be any great loss, though, if we skipped debates in the upcoming cycle — and maybe forever.

If this is the end of the practice, good riddance.