Can you join a club that costs less but is likely to attract singles? A lot of singles are not so young, and they show up in these clubs, too. I went to a singles group with a religious focus for a while. I must say that most of the people I met there simply were not likely to fit in or be accepted some place else. Based on my experience, I would say you might run the risk of meeting a lot of people who are desperate, lacking in social skills, with multiple divorces or broken relationships, or with other problems.
Can you have a couple of free visits before paying out your hard-earned money to see if you think this group would be appropriate for you? It might be a great group, but err on the side of caution.
Best wishes whatever you decide,
SandraC