Maxperson
Morkus from Orkus
Yes options are complexity. Look at the Champion Fighter. Most of the abilities are static, so no decision points. Other than action surge and second wind, there are not a lot of choices other than who to swing at. Contrast that with a wizard who has many different decision points in every single adventuring day. He has to know what spells to cast, which spells not to cast, when to cast those spells, when not to cast any spells, and of course he has to balance both combat and non-combat spells in a way to last the entire day.Have you looked at 5e yet wizard? It is not very complex. You have a lot of choice in spells, so a lot of options (spells), but that is not complexity
To play a wizard correctly, it's very complicated to get right. To play a wizard badly, you're right that it's not all that complex.