Have a data share with shared(daytime) anytime minutes with mobile share data. Parents tend to use daytime minutes and children use unlimited nights and weekends this will allow parents and children to have the benefits of service and the minutes that the parents are paying for will not be lost. With a mobile share data it allows them to have data on the koodo network but you can stress the use of wifi in areas where it is offered (ie. such as in most homes and in public spaces.) So if you offered shared data the parent most likely would use only a small amount but still have the option while family members can use the shared data plan and wifi when available.