age = 20
if age < 2:
print('the person is a baby')
elif age >= 2:
print('toddler')
elif age >= 4:
print('kid')
elif age >= 13:
print('teenager')
elif age >= 20:
print('adult')
elif age >= 65:
print('elder')
it works, but when age is more and 2, the answer is always toddler. I do not know what happened.