And you are not alone - apparently 53% of gamers (total) prefer single-player games, [although this falls to only 30% in the 16-19 years age-group]. https://www.midiaresearch.com/blog/most-gamers-prefer-single...
I wonder how much of this is familiarity (i.e. I play games in the style I did when I was sixteen) versus people in older age-groups having less sustained time for gaming (i.e. grabbing twenty minutes while the baby sleeps) and single-player being inherently better for that use-case.