What are the pros and cons for twins who are child actors?

What are the pros and cons for twins who are child actors?

The disadvantages for twins would only be if one gets it and the other one doesn't or they both get hired but only one is used on set. Maybe they show up and one kid is just on that day and the director is able to get a reaction and works that kid, works that kid and gets everything they need and then guess what? They are done. They call a wrap and the other kid is like "When is it my turn? Sometimes a kid will go to set and they won't work because they are either a backup or the other kid hit it. So you have to really be kind to the child and explain to them it has nothing to do with them. It just has to do with the production. We were here just as a safety. That would be my guess would be the worst thing that could happen to twins.