It really depends. Quite a lot of older people drink only tea. Young professionals living in London drink espressos, capuccinos, that sort of thing. I don't know anyone who drinks instant coffee (although I'm sure some people do).

Factory workers in Northern England will go for tea, but instant coffee is also always present (for managers and secretaires? who knows).

Generalisation ahead (based on my experience in London).

Many people will have a morning coffee, but tea is drunk continuously throughout the day.