storing your value in bitcoin is a good thing, but remember that storing it all in one basket is not recommended.
Point one, parents who want to take this paty should also consider diversifying the investment portfolio of their children. So yes I agree that it is the safest option to take.
parents also need savings in fiat where the value is more stable and parents do not need to worry that the value will drop at any time.
Point two, while I still maintain my stand in the first point I also acknowledge that there are some parents who risk appetite is high and can tolerate the risk involved with Bitcoin volatility. And if the thing they can we can't stop them.
so if i personally, for my child in the future, i prefer to save some of my money in fiat and also bitcoin, because at least i have a stable asset that i can use anytime i need it and also a bitcoin asset whose value can grow in the future.
Point three, the goal here should not just be about investing in Bitcoin for your kids rather the goal should include teaching your kids financial literacy because if you don't when they come off age, they would simply withdraw the bitcoins and make very poor and uniformed spending decisions.