you also seem to be looking at things negatively. here's an alternate view:
- you don't have to buy something on a timer.
- - get to know the owners/workers, and they'll enjoy your visits, no matter how long. most of the cafes i visit love it when i bring my dog for instance.
- - if a cafe is (nearly) empty, you sitting there provides natural marketing for the cafe in the form of social proof (no one likes being the only person in a business). i usually leave when i notice it getting full so others can enjoy it too, but if it's half empty, i have no qualms staying for a while without the pressure of buying something on a timer.
- stupid conversations are easy to tune out; interesting ones are the hard ones. at the very least, it feeds the superiority complex nicely.
- dogs are bundles of joy and love, and make (most) people happy.
- again, get to know and show interest in the owners/workers and develop rapport with them. they may even give you free stuff.