I've been a judoka for several years; I also started late, in my 30s. I train 4-5 times a week for 2+ hours a day at one of the best dojos in my country, and my country regularly medals in international events - there's no lack of high-level talent.
I've sparred with literal Olympians, and receive instruction from one of the most highly ranked and respected judoka in the world who has produced Olympic medal winning athletes, in addition to our other instructor who was a top 9 finisher in the Olympics, World Cup winner, and multi-year Pan Am champion.
And you know what I've found out after all that? Competitive judo is fucking hard. It will brutalize your mind and body in ways you never thought possible.
And just when you think you're getting anywhere, you'll have a match with someone at a national/international level, and you feel like you're a day-one white belt getting ragdolled by someone having fun and going at 40% of their competition-level intensity.