Of course this is good advice for parents who want to protect the future of their children, but maybe you have to look at our economic situation too, if you think you don't need to use the gift money because you can afford it, it's a good thing to save it in bitcoin for your child. But yes, people's economic conditions are different, so of course you have to measure them first with their conditions.
I also often see someone using money as a gift for children when they are born or on their birthday, many parents buy it in gold.
But after seeing your suggestion I think it's a pretty good idea.