I far prefer inside. Outside has weather. And biting insects. And people.
I do enjoy going for walks and camping if those other three things are kept in check, but I'm not a beach person (too boring sitting in sand for a day), or much of a gardener (I do raise kitchen herbs in a small plot out back), or play any outdoor sports. The majority of my favourite activities take place inside, like cooking, playing board games, karate, doing jigsaw puzzles, entertaining in my home, and reading.
Going to Outside is just a thing I have to do every once in awhile so that we don't starve or run out of toilet paper.