Future generations will surely adopt Bitcoin today or tomorrow. But those who are able to exploit this advantage first will be ahead of the rest. I will definitely teach Bitcoin to the younger ones in the family who are old enough to learn. If they learn about Bitcoin from their families, they will be more interested in learning about it from outside as well. On the one hand, as the younger ones will be ahead in increasing their technological knowledge, they will also be comfortable in the financial aspect. Teaching them Bitcoin at a young age means building a hard foundation for it.
Yes it is true that in future generation everyone will adopt Bitcoin. From now on those who have adopted Bitcoin can introduce Bitcoin to their family members if they want. But I think those who are interested in Bitcoin should be introduced to Bitcoin. In future all things may be transacted through Bitcoin.Paper money may not exist in the future. All transactions will be done through bitcoin very soon we will have to wait for few years for that now people in almost all countries know about bitcoin slowly everyone will start using bitcoin.