[konne88]

TLDR: 80% of kids used to be potty trained by age one. Nowadays parents train later, because diapers are so convenient that its feasible to wait until the kids are older where it's easier to train them. This provides massive revenue to diaper companies.

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This seems roughly plausible. I have never been successful at training 1 year olds to be potty trained, because there is so much exposed poop & pie involved over such long times, that it's just way easier to push it back by a year or two when they can figure it out more or less by themselves.

Maybe back then diapers were so bad, that there was always a lot of exposed poop & pie involved anyway, so potty training didn't really make your life any worse.

I'd probably say those extra billion in revenue are well earned.

[thatfrenchguy]

I had to go look at my Costco and Amazon orders to check because my intuition was that I spent so much more money in diapers in the first year and indeed, that was like ~75% of the cost of the first two years. Toddlers get changed so much less often than babies, and you can plan your purchases way more easily, so I’m not even sure they make that much money off those.