Just imagine the time cost involved in that. New features and upgrades would come once a year, maybe. How do you track different sonfigs across hundreds of shop

Just imagine the time cost involved in that. New features and upgrades would come once a year, maybe. How do you track different sonfigs across hundreds of shops? POS systems with touch screen have been in use for 10+ years, they are well tested and there is no "screw the users" attitude in the industry. Not sure what you are complaining about.