Being abducted in general is really hard, like SUPER hard. I know from experience, I wanted my one sim to be abducted so bad, I had him do the science career, I had him work on a rocketship and explore space, I had him use the satellite to contact the aliens I had him spend time outside at night to try and maybe prompt it, I had him stargaze, he maxed out his skills and still never got abducted, took a long time and much trying but eventually before he became an adult he got abducted, using the longest age setting cuz I wanted him abducted as a young adult... I was almost convinced the only way to be abducted was to actually visit sixam, and gave up trying to have future sims abducted because of how long it took, and just went to sixam and invited a whole bunch of aliens to their house to woohoo... :l