Hey. Do not hurt your uncle, - tell him that you have your point of view on investment. Offer your uncle to split the deposit in half, - one part is invested in Bitcoin, the other in the bank. Make a promise that as soon as the part you put into Bitcoin doubles, you will split it in half and leave half of it in Bitcoin and give half to the bank. Thus, - you will not offend the uncle and obey his opinion - and you will have something to rejoice. I believe that explaining to older people about the benefits of Bitcoin, - useless. They need only ways that they can feel, the ways in which they went their whole lives.