It must make a difference where you live. I have had the main vine for about 18 years and the one baby started about 3 years ago. I know a lot of people who have not been able to grow them at all.
Now Virginia Creeper, that is another story. It is a noxious weed. I think the only way to get rid of it would be to sterilize the ground, and you can't do that because you can't buy the chemicals.