Hey there @GRAHAM_TR6 ! I would love to look into your situation, as in most cases, Hagerty certainly does allow youthful drivers to be added to you policy.
@Mcqueen6819 it sounds like there may be several factors at play here. But again, outside of some specific specialty vehicle classes, age alone is not a restricting factor in excluding coverage. If you have quoted with is previously, I would be happy to look into it for you.
I don't really have anything "new" to add to the comments of others - they have said most of what is relevant. But I do want to add my appreciation for what these women (and plenty of other folks) are doing to preserve the ability to appreciate vintage automobiles. I especially liked the parts with the kids sitting in and admiring the cars and the comments about not disparaging types of cars other than the specific one we each love. Inclusivity of ages, genders, economic status, and brand or vehicle type diversity is crucial to keeping this passion alive, united, and strong.
I don't have a high-dollar classic, and I encourage all kinds of folks to sit in it and ask any questions they have. More than anything, I love to let kids explore the car. Yes, I have to wipe down a lot of fingerprints. Yes, the knobs and buttons all need to be rest quite often. But no way will you see a "Please Don't Touch" placard on my car. Like what was suggested by @uweschmidt, I like to show people that a normal Joe like me, along with a few friends and a few parts, can put together a fairly nice - and ultimately blast-to-drive car without having to have a Bill Gates bank account.
I show them what stuff I found at salvage yards, swap meets, and online used parts sites. I tell them that a buddy and I painted the car in a garage - and that the only reason it look decent is because I've worn my arms down to nubs polishing and waxing - which other than some Turtle Wax, is pretty much free.
The work of these ladies and their organizations is important. But (IMHO), equally important is what each and every one of us can do with little or no effort or cost: welcome strangers to feel comfortable with our rides. Encourage dialog about the hobbies. Smile and wave and acknowledge the "thumbs up" you get. Offer advice or even an afternoon of wrenching to someone who is starting out in the culture.
Okay, okay, I get it - if you have a $75,000 pristine number-matching collectable, maybe you don't want every little kid in town crawling around in it. Understandable. But the vast majority of us have just "drivers" - no disrespect intended - and can afford to be at least a little open to anyone who is interested.