I think parents should allocate money both for savings and investments. Save money in fiat but also invest in assets whether it is crypto or gold or real estate. I think both can be very helpful to their children when the time comes.
But depends of the knowledge of the parents since if they don't know about bitcoin then much better for them not to invest anything yet until they fully learn how bitcoin investments works. Then focus to make their savings make happen.
We all know how good bitcoin for potentially giving returns for long term investment. But I think its not right to put the important funds of their children to bitcoin since we don't know on what will happen on it in future and what if by the time the parents need the money and the bitcoin market is in bearish condition then provably they cannot do anything but to sell even if they lose maybe a huge percentage of their invested amount.
That's why sometimes I'm not a fan for using the important funds for investment since there are uncontrolled situation happen and we don't want to lose our funds because of negative conditions that might occur in future.