I understand the underlying point, but I don't agree in every situation, such as travel which I explained. Most leisure related activities are enjoyable to me because I have someone close to share the experience with.

I understand your point and I mostly agree, it's usually better to share experiences with someone than go it alone. On the other hand, flying solo is better than not going at all.

I really wanted to run the Disney World Marathon last year, but I couldn't get a group together. If I had decided to pass I would have missed what turned out to be one of my favorite trips ever.