Yes, seeing our kids be disappointed is one of the hardest parts of parenting. And no matter what they pursue there will be disappointments- their team losing a big game, they don't get the part they tried out for in the play, they get a bad grade despite studying hard, don't get into their top choice college, don't get that job they thought they were perfect for, and so on. A big part of parenting is teaching them resiliency so they can handle the inevitable highs and lows in life.