Not being a beer drinker all I know is some beers are light and some are heavy and you will need two hands to lift the glass.
I once knew a guy who was proud of his ability to chug a can of beer faster then you could pour it out of the can. It always amused me to see pictures of the little old brew master diligently working for years to get just the right taste and then watch this guy chug a can it just a few seconds.