If your foot isn't cleaned well, it can get infected and potentially cause sepsis, which is very dangerous. Should we be removing children's feet?
No, obviously not. The time for invasive, nonconsentual medical intervention is when it is medically necessary, and circumcision does not fit the bill.
If the foreskin isn’t cleaned well (challenging for toddlers)
Newborns should not have their foreskin pulled back for cleaning, as the separation can cause damage. IIRC it's only a bit before puberty that it is safe to gently (not forcibly) pull back the foreskin.