I am interviewing a family tonight with a 3 year old who is not yet toilet trained. The family has many changes (international moves, job changes, caregiver changes, etc). The thought of changing a 3 year old's diaper grosses me out!

How would you address this with the parents? If I decide to accept them, how/when would you start training this little guy?

There are a few other red flags too - he apparently doesn't nap (I will explain that he will have quiet time here for 2 hours) and the parents were upfront about telling me that there will be times when they will be up to 1/2 hour late picking him up.