Mental health systems are so overburdened that it’s not uncommon for someone assessing a trans person’s poor mental health to go “well, you’re experiencing [wide array of concerning mental health symptoms], but it’s my opinion that these symptoms are almost entirely attributable to gender dysphoria, and you’re already on the waitlist for the gender identity clinic, so there’s nothing more I can do.” and then they discharge them.
With such huge wait lists, it would make sense to keep someone on your books to keep an eye on them at least, if they’ve expressed feelings about self harm, but that doesn’t happen because the system hasn’t sufficiently acknowledged just how fucked the trans healthcare wait times are. Like, in the UK, there’s a statutory maximum of 18 weeks wait from when the referral was made until your first appointment, but the standard wait for an adult to have a first appointment at a gender identity clinic (which doesn’t involve any treatment, that comes months later) is literally years. But officially, you should be seen within 18 weeks, and under those circumstances, well the mental health people discharging you is reasonable if there’s little they can do to support you