Pinchy
Blade, not Bladey.
The way to prove you're good enough is only by playing first team football and showing it. People mistakenly use this to commit the fallacy of saying "how will you ever know if they don't play?". The mistake is in forgetting about all the youth games, reserve games, and training time that the youth have access to in order to demonstrate their abilities. So, sure, they're always a gamble when they make their first real start, but not all gambles are equal.
The error is clear if you think about how many people you know that, in spite of never having played a game at the professional level, are blatantly not good enough.
You have to earn your chance. The youth team is not a random selection of unknown quantities. It's a selection of those with potential where the weaker ones are weeded out at each stage until eventually a select few make it as full time pros.
Precisely. All of which is exactly what I have said, but in a different way....