I completely understand those of us who don't have true friends around. I know how difficult it is to connect with another person. Very smug of some to think it is and to tell of numerous friends they have. Life gives us all different chances/circumstances/personalities.
I have was in U3A for a couple of years, a book club, tried churches, and a community group over the years. I found cliques, groups of people who had known each other for years with no room for outsiders...none of which were particularly friendly outside of the meeting times. I had to listen to friends/neighbours making arrangements to meet up and never was invited to join in.
The book club read books that weren't my thing at all. The community group just sat round drinking coffee for 2 hours. I'm sorry to say a lot of U3A members were stuck up, and I heard unpleasant things said about other members and saw a couple ostracised, who gave up going. It is not the be all and end all or the magic way of making close friends. Church was similar, I didn't fit...as I realised when the minister pretended he hadn't seen me in a local shop. {He had].
I am open, polite, friendly and people often gravitate towards me, strangers talk to me. I have met lovely and interesting people on bus stops, benches, on bus journeys, in a supermarket or coffee shop...had a laugh and amazing conversations....but it does not translate to being taken further.
I have one close friend who actually asks how I am. I live on my own. I'm friends with a couple who think I'm fine...'because I have [adult] children and grandchildren' ...so that means they don't bother to see if I'm ok. I'm the one who phones them, and visits them. I find couples don't think what it's like to be single and live alone. Good job I'm fine in my own company...rather no friends than inconsiderate, selfish ones.