The small text in GTA IV was so irritating that I never completed the game. I got sick of getting up to go look at the map up-close.
Madpony, via Reddit
Although setting a good default size is beneficial, there isn’t a single set size that everyone can read, due to differences in levels of visual impairments and differences in screen size or viewing distance. Although more difficult to implement, allowing players to choose a font size that best suits their abilities and situation is much more effective.