>>49272627That scientific theory has been long debunked, and many long term marriages result from people who knew each other as kids. The most common reason those relationships don't work is usually the maturity level of the kids involved and that most get in relationships early and fuck it up because they're still kids.
AshxChloe is an interesting thought experiment ship to see how you could fit them together, plus it's
cute but the only fics and art that I see of it basically have to pretend that Serena doesn't exist and Goh is gay or just not interested in order to give the ship space to grow because otherwise it just can't get off the ground.
Pic related is easier to conceptualize because even if the series isn't pushing it like they did Amour or Contest, it's got Poké or Pearl level hints you can build up on.