If you've experienced the impact of alzheimer's or dementia on loved ones, you know that midway, there minds are active but limited by short term memory loss. They lose the ability to self-entertain.
An artist named: Yudhaikeledai has made several examples of the SIMS games with "My Little Pony" characters. Copyright issues aside it's a pretty amazing example of what can be added to gameplay by having well developed characters with clear personality traits. Awesome.