Neatness is not determined by gender. It varies from person to person and is influenced by factors such as upbringing, personal habits, and individual preferences. Both girls and boys can be neat or messy depending on their individual traits.
neater is to tidier as messier is to sloppier
Usually girls, but boys can be, too. It also depends on what your learning about; if your learning about wars, then probably boys. If your learning about anything else, then girls. Boys tend to figity, restless and distracted. Girls tend to listen better and wright neater.
More neat, neater is not proper grammar.
neater
sexer
I prefer a curling wand It can usually create neater and tighter curls
it is a place that is neater
cleaner
fastidious
Neat -- Neater-- Neatest
No, but many people use such colloquially. Neater is a comparative adjective (positive-neat,comparative-neater, superlative-neatest). Comparatives and superlatives are not generally modified, other than where necessary by an article (the neatest). Comparatives are typically preceded by a verb and followed by the conjunction than.That is a technical treatment, the wordy form. The short answer is just no. It is redundant to try to modify a comparative adjective. It's sort of like trying to say, "There is more more water in the Pacific Ocean than any other."