You can have beer in a bigger format in Spain, and if you go to a place to drink beer you would order something from a ‘tercio’ (330ml bottle) to a ‘jarra’ (usually 500ml, some places have 1-1.5l mugs). The tiny beer glasses (caña, ~200ml) have another purposes, for example if the place serve good ‘tapas’, a complimentary small dish served with your drink, since they have the same size whatever you order you get more food with smaller beers; or if you aren’t staying at the place and just want, or need, a quick refreshment before going somewhere else.
You can have beer in a bigger format in Spain, and if you go to a place to drink beer you would order something from a ‘tercio’ (330ml bottle) to a ‘jarra’ (usually 500ml, some places have 1-1.5l mugs). The tiny beer glasses (caña, ~200ml) have another purposes, for example if the place serve good ‘tapas’, a complimentary small dish served with your drink, since they have the same size whatever you order you get more food with smaller beers; or if you aren’t staying at the place and just want, or need, a quick refreshment before going somewhere else.