While we're mostly beyond the "everyone on the soccer team gets a trophy because we're all unique snowflakes" phase of raising children, we are technically all unique snowflakes! Our differences deserve to be celebrated and it's true that there are no two humans who are exactly alike. That being said, we aren't all "gifted" per se. Sorry, but your kid's finger painting probably isn't going to be a put in a museum. We aren't all human calculators who can see landscapes in geometric proofs and most of us won't sell out arenas at 15.
All parents want what is best for their children and supporting a child's dreams is a great start. Maybe your kid isn't a prodigy or a genius but they can be a genius to you! It can get pretty awkward, though, when parents feel the need to use their children's skills to compete with other parents as some sort of catty competition in who raised the "most impressive" kid. Chances are, if your kid is a prodigy you had very little to do with it.