What you are buying at this price
A Blackview kids' tablet is a budget Android tablet inside a thick protective case with a child profile and content controls on top. That combination is exactly what a young child needs and it costs a fraction of a mainstream tablet.
Be clear about the performance. These are slow compared with a OMR 100 tablet, because the money went into the case and the software rather than the chip. For video, drawing apps and simple games that is fine.
RAM is the specification that decides how long the tablet stays usable. 2GB is the floor and it will frustrate an older child within a year. If the child is old enough to want games, pay for more.