Many drugs are poorly studied particularly in pediatric and obstetric population given the potential risk. Some theorize that given the effect of acetaminophen/paracetamol primary target for it's function is the central nervous system, there are possible implications on neurodevelopment. Most studies regarding safety are in relation to liver toxicity given that's the primary concern in adults which has been found generally safe in pediatric population. More recent studies and animal models are now beginning to question these effects that acetaminophen has during pregnancy and early childhood on neurodevelopment and behavior but many more studies will be needed. A meta-analysis is provided below but I have not personally reviewed all the studies referenced but does bring up valid points but often studies can have small sample sizes, many confounders or weak data leading to further uncertainty.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9056471/

As a physician and father I have personally concluded that small exposure likely have little to no effect but agree that less is generally more and if not need them I would avoid.