It's OK to invest in bitcoin long term in bitcoin ^{[it's wise decision].} I assume your child is currently 2 or 3 years old and currently bitcoin are worth $23K. You have another 15 years until your child grows up, but have you seriously considered what if bitcoin won't give you the returns you deserve in 15 years?

Even if you really say that you are ready to take all the risks, but I don't think you are really ready to accept the loss if you lose all your bitcoin because of your own fault. I mean, the safety of your wallet is your sole responsibility and having custody of your assets is recommended. You need to consider having way to keep your bitcoin safe, and have you thought about it now?