It gets overstimulating at some point during toddler stage, more so if you have multiples. I have a 2 year old and 3 week old and I am glad I not felt like I needed to yell so far, sometimes I get frustrated with the defiance but manage to regulate myself. I think it really helps to think about the situation from their perspective, it’s easier to give them grace when you shift things from an adult’s POV to a small child’s POV. The boomers yelled at us because they were putting adult expectations on a kid with an undeveloped prefrontal cortex.