That's actually a wonderful idea! But for me, instead of buying bitcoin I would just pass to them all earnings I would gain and as early as now teach them how it works so they would have more options whether they wanted to have a personal investments or just continue what I started.
Of course we are all thinking about the future.and we all want a bright future specially for our family.if my journey here in bitcont succeed i will teach also my children so they will have chance to earn money to