Honestly it CAN be hard where I am. CAHMS is notoriously slow with some people having huge waiting times or getting caught in loops of who to talk to. But in those cases that I've known the parents usually mention something is wrong and they're on the waiting list. Which is usually enough for people to accept because it's a known thing how slow/difficult it can be. Though you also don't really get a referral to CAHMS unless it's bad.