I would say yes and no. By some extent humans are very social creatures but there are some exceptions to the norm regardless of background. Most people tend to find comfort with a loved one or friend beside them. I have even shocking witnessed first hand, a woman in a medical center/hospital kick her family out of her room and request to nurses to not allow them in until she was no longer with them. People who have been single for years like my aunt are enjoying her life for the past 71 of them without a significant other.