As long as you are someone who is similarly introverted, with no friends or a very few, and used to staying home for leisure rather than going out to socialize, it wouldn’t be a stretch to date someone who has no friends, as you would have similar lifestyles, which facilitates compatibility.
This is assuming that this is someone who doesn’t have any emotional trauma that has kept them from developing friendships with people.
Having no friends is usually a sign that you are either dealing with someone who prefers being alone and not going out to socialize or someone whose personality and character are so questionable they turn people off.
There is a difference between a harmless introvert and a sociopath.
At first, it seems endearing that he wants to spend more time with you and asks that you skip a lunch with a friend or family member so as to hang out with him.
Nevertheless, as time passes and he demands ever more of your time, it is no longer endearing but toxic.
It’s no longer a lunch with a friend or family member he wants you to cancel so as to hang out with him, but birthdays, anniversaries, weddings, baby showers, etc.
He wants you to stay with him and only him, whether it be at home or out on the town.