in order to better our children life when they grow up, we have our duty to earn and save our money for our child, so investing in bitcoin as a second income is a great idea, may be we dont have to save too much bitcoin, but just little and keep it safe in our wallets and wait until the day bitcoin price get high enough, bitcoin profit may very big.
It is not because we are oblige since they are out children and it is our legal ang moral obligation but because we love them, we wanted to have them a good future and as a parent we are here to support and to provide it, that is why I will save as much as I can not only for them but of course for myself as I don't want to be a burden to them in the future.