I have tens of strays in this same situation. I try to remind myself that neutering, an hour of loving attention a day, vet care in serious cases, and nutritious, super-yummy food (varied raw meats and good-quality dry) is more than many, many house cats get. That said, our winters are short, quite dry and mild, and we don't have dangerous predators here. And because they're always well-fed, they don't roam, so they don't cross the street much.
The Royal von Meouw Dynasty: His Royal Highness the late Prince von Meouw,
Her Royal Highness Princess Gatita von Meouw, Nikita Duchess of Meouw and
His Highness Cuchi-Cuchi, next in line for the throne of Prince von Meouw.