Is it unusual that I enjoy noisy kids but can't stand problematic adults?

I don't understand why too many people hate when toddlers or small children run around, make a mess or scream out of excitement; always referring to them as brats. Honestly, I'd rather deal with a toddler throwing a tantrum at the supermarket than listening to adults with their traumas and negativity. At least their brains are still developmenting and they're learning vs adults that already have life experience and should already have maturity. I actually feel sad when a small child is emotionally unregulated. I feel like helping them if I could, finding out what's causing it.

Is this unusual? Ever since becoming a mother of a son at a later age, I find myself having patience with child, even finding it fun when they run around and disorganize things. With adults, it's different. If an adult started complaining nonstoppable, I would be leaving and or telling them to stop acting like a child. I have little patience with nonsense from grown-ups.

Is it unusual that I enjoy noisy kids but can't stand problematic adults?
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