I'm a Brit and I can assure you that in a lot of British social circles, 3 to 4 beers plus 1 to 2 glasses of wine would be considered an entirely normal evening out. Especially if on holiday. And especially if you're talking about bottles of beer instead of pints.
Context and social expectations and culture seem to cast dramatic differences on what level or pattern of alcohol consumption is considered 'normal'.
If it were me, the question I'd want to ask would not be 'is this too much?' but 'is this a compulsion?'.