Not much you can do about it, in reality. All Ts begin young, whether just in age or both in age and experience. When you leave with that PhD in your hands you trust the establishment that you are prepared for the tasks at hand. NOT.
You have confidence that you can handle what is presented, but to be truthful, you aren't ready for it all. Refer, refer, refer... used to be the punchline of many psychologist jokes (maybe still is, IDK.)

We all had to begin somewhere. I shudder to think of those who are calling themselves Ts, counselors, advisors, even maybe coaches, who are not fully trained, because even with full training, you still need others in your life who you can go to for assistance. If someone isn't fully trained, certified, licensed whatever in some way, they are that much shorter of good help.

However, even a young therapist, with a good mentor and support system herself, will be able to help those who need her counsel. The majority of patients need a sounding board and not much else.

Time-in-grade, as we call it in the military, has a lot going for it though. You just can't fight or beat well learned experience! But without adequate learning, even age won't help them get a needy patient through much.

peace.