We did the out of reach and our LO hated it but it took about a week until she got angry enough to just push off the floor, then push and reach, then head scoot, the half crawl to shaky crawl now we can't keep up with her. Yes they will be very very mad. But just wait longer and longer to step in. They figure out an alternative quickly. If your baby is a bit fluffier then average, we had our LO strengthen her arms by pulling herself from lying to sitting on our laps about a million times. We also stood her a lot to get her legs strong. When she strengthened herself plus the motivation she got it figured out within 6 weeks. If a toy doesn't motivate try the bottle, binky, or finger foods.