It is never good to have toxic friends. However, it is also bad to have no friends. The definition of friend is interesting. Friends are more than acquaintances, but some people are content with acquaintances who they spend time with usually in a formal manner. That is fine. Some people would rather spend time with their family members instead of making a bunch of friends.
Their family may be supportive and fun to hang around. Therefore, it is best to have no friends than toxic friends. Toxic friends can make you depressed or get you in trouble. You should have no friends, but you could have acquaintances or join clubs and make friends that way. If you have a favorite cousin, you could hang out with them.