| It's D&D. It's not realistic. At all.
A 90-year old wizard with 3 dex, 3 str and 3 con has the same movement rate as a 25-year old ranger with all 18s. If he wins initiative an axeman can charge 60 feet and swing at an archer who had an arrow nocked at the start of combat before the archer gets a shot off. A shortsword is just as effective against full plate as a bec-de-corbin. There are classes, and levels, and hit points.
So why is 1-1-1 an issue and the rest aren't? If you wanted realism you wouldn't be playing D&D. Time after time, D&D chooses playability over realism. The old 1-2-1 was a weird outlier here.
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The female tiefling's horns are not 'handlebars'. | 
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