Raising a child costs between $13k[2] and $35k[1] per year in the USA – depending on where you live and who you ask.
With a minimum wage job ($7.25/hr) you need to work about 5 to 13 hours per day to make that much – before taxes.
[1] https://smartasset.com/financial-advisor/cost-raise-child-2023
[2] https://www.investopedia.com/articles/personal-finance/090415/cost-raising-child-america.asp
You don’t need to explicitly write something down to say something.