If the main reason you play chess is because you want to have fun, then just play the openings you find interesting and exciting. In that case, the Open Sicilian will keep you entertained for several lifetimes.
On the other hand, if you’re serious about wanting to improve, then developing an opening repertoire will become an important part of your campaign.
Max Walter vs Lasker, Ostrava, 1923. Lasker with the black wins in 3. Play, solve and comment