Well, they have no positive male role model, and many are assault victims or hear lots of news about cases like it.
It is understandable that most of them don't want to be near any woman.
Having the feeling that her daughter is gonna be the same in the future. Super cold in her teenage years because of her parent's cringe, but clingy later on when she falls in love.
This is what happen to a manga when the main characters are responsible normal adults :))) No pathetic dramas to over-extend :)))))
Still, could be more deep-dive into their travels, though.