How to reach max growth tier

[Pafka]

I feel like my child was not once below 80%, mostly even above 90. Yet she is 6 years old and hasn't even reached tier 5. Out of 8...

I thought only the learning percentage counted? How is it so low, I won't even get 2 passions :(

[Khan Boyzitbig of Mercia]

You would be surprised how many tiers can go up in one year's worth of growth.

[Pafka]

But for some reason children sometimes ignore learning when its below 80. I dont understand why

[RED8cted]

It's one of the reasons why I use this mod: https://steamcommunity.com/sharedfiles/filedetails/?id=2887084050
Just let them "bake" inside a growth vat.