[aj91fl48znv3mpk]

I'm 45 and have dealt with similar, isolation issues. No kids. There are biological reasons when we are infants that require the human touch and care to survive (other animals exhibit this as well - whereas, the lack of parental care significantly increases mortality). I posit that even into late adulthood, these biological needs are still there, even if dampened. I've never heard nor read anyone regret receiving a sincere hug from someone whom they valued.

I guess what I'm getting at is, if there are no parents or friends that can fill this role for you, then I think the next best thing is that you fill that role for someone else who may be in need - if they reciprocate, that void will begin to fill.