why is the gap between BGs and GGs debuts so huge?

higher chance of bgs flopping

These last years the industry has been begging for more ggs. Not only are they getting more profitable than before because of fandom engagement, but I feel like for smaller companies it's more probable to hit big somehow with a gg than with a bg. The bg market is very, very hard to get into and the concepts are a lot more monotone. Also because the general interest for bgs have dropped in SK, getting to perform on festivals and such for nugu boygroups is harder; put a nugu gg anywhere with a catchy song and they'll get attention from boys and girls from different ages. Put a nugu bg anywhere and they'll only get attention from some teen and young girls. The prejudices play a big part too.

Because gg's usually have a shorter life span?

Quote from pamyu-pon

isnt that bad tho? why would company prefer a group with shorter life span?

It’s easier for new GGs to attract listeners (as we seen from recent debut of GGs) compared to BGs. So they are able to capitalised their group more quickly than BGs. But the attention span of listeners to the same GG is not as long. After 7 years, companies prefer to debut new GGs. As we’ve seen from Gfriend, CLC, etc. More GGs disband too compared to BGs.

Girlgroups aren't as profitable as boygrous yet, even though they are much closer than what they used to be

During third gen Boygroups were far more profitable than girlgroups and as you showed companies already debuted more girlgroups

So, why companies debut more Girlgroups?

The reason is pretty simple: There are more female trainees compared to male trainees

Overall the big companies as rule for thumb debut more male idols than female idols, or at least debut them in a similar number. If there are much more women interested in being idols, where those trainees goes?

To small companies mostly. It comes to no surprise the absolute majority of GG your listed are from small companies

Remember: For small companies, their business aren't the idols, but the trainees. They have no hope for them to hit whatsoever, otherwise they would debut a Boygroup who needs less investment and farm fandom much more easily if your company don't have hype or previous fame. No, the truth is for small companies their TRUE business is training idols. They survive from training and from trainees debts, they barely make profit from music and for debuted groups if at all. For them is good Big4 do not debut those female trainees because now they could get them and use their dreams as source of money.

Hope it clarified

It is because women buy more albums and tend to be more loyal to their faves.

Male fans are hardly as dedicated to their faves as female fans. Male fans drift away to another act more easily.

I think it has to be the trainee thing that people are talking about. More female trainees ready to debut.

Though, maybe this could be a factor? gg are more respected and the gp is more willing to give them a chance. Perhaps for newer companies, they think gg's could be more beneficial to start with to help establish themselves better and get their name more out there as opposed to bg.

Because the gg market is easier to access and easier to get popular, how many bgs do you see getting a Brave Girls and Momoland and grab a hit out of nowhere even with a shitty company..

There are about 6 high profile bgs in 4th gen which are really popular, there are more high profile ggs which debuted in past year without counting 2018-2020.

Likely with the fanbase ggs got this past years it makes even more likely for small companies to start with a gg if on point of general public, they can get good fanbase too.