Don't drink tea so have no concerns in that department.
As to "independent" coffee shops.
Well!
In the dark days before Starbucks those of us on the road were doomed to drink a fluid, sold as coffee, which was made by putting a spoonful of aged, catering freeze-dried crud in a cup adding milk and then heated on the frothing jet of the espresso machine.
It was not cheap. OK less than Costa but not cheap and the surroundings were only conducive to moving on.
Bottom line.
Give the punters what they want and they will pay for it and come back.
In their day the Department stores were the enemy of the Little Man.
Tesco et al have their moment but already they can see which way the wind blows.
The public are fickle and nothing is ever as good as it was.