Company is asking me to take a course for a skill that I feel..at minimum, competent, with/in. It's just another...aggravation in what seems like a job mismatc

Company is asking me to take a course for a skill that I feel..at minimum, competent, with/in. It's just another...aggravation in what seems like a job mismatch - role, expectations, etc. I'm not keen on it for at least a couple of reasons, not the least of which is because....I've seen said skill demonstrated at the company, and I'm not impressed. And it's just me that is required to take the course -- i.e. they seem to truly believe I'm not competent/enough in said skill. Were I a different person I might think, "Cool - I get to brush up on tying my shoelaces", or "Cool - a couple of free hours", or similar, but I'm not a different type of person. I didn't push back (yet) on this particular topic because previous pushbacks on various issues did little or nothing, and I've been job hunting already. There is a 5% chance I could end up staying, so curious how others have dealt with 'getting nephewed'.