This reminds me of a work colleague from many years ago. He played football at the college level, and his dream had been to play in the NFL. That dream was ended by an injury in a college game.
He told me he had often heard that striving for the NFL was futile, as so few players actually made it. But he pointed out that at any given time there are around 1,700 players on active rosters in the NFL, plus a few hundred on practice squads. He further noted that, at the same time, there is only one President of the United States. He then said “Would any parent ever discourage their child from wanting to be President, despite the odds of it actually happening?” Excellent thought.