Analysis of information sources in references of the Wikipedia article "Endeavour (TV series)" in English language version.
In Endeavour he starts out being entirely abstinent, but he develops a taste after being given a pint by Inspector Thursday. It is implied that the reason for his sobriety is his disinclination to turn out like his father. Later he claims he 'thinks better' over a pint.
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: CS1 maint: location (link)Endeavour: The Final Season Episodes
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