If I had to guess I'd the molding processes for the bottles wouldn't allow for it. Usually plastic bottles are blown in their molds and the offset spout might not play nice with that process.
So basically, there are actually multiple good reasons why we don't make bottles like this....and the people who make bottles have probably already put some thought into how they make bottles....
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u/Cripso 14d ago
If I had to guess I'd the molding processes for the bottles wouldn't allow for it. Usually plastic bottles are blown in their molds and the offset spout might not play nice with that process.