New to TS4... my sims appear to have zero attention span... is this normal?

Yeah unfortunately that happens a lot, you really have to keep an eye on sims to make sure they are actually doing what you’ve instructed them to do. They are likely to just cancel an interaction, even if it’s important like going to the bathroom with low bladder, my sims usually will cancel and go do something else like get water or do pushups. A lot of the time i will queue up an interaction and it will just immediately cancel itself which is super frustrating. Im the one in control here little sim lol