But I think holding it for 5–10 years will actually be profitable.
Yes this is long term saving and it will help because bitcoin would have increased more in 5 to 10 years. But it would be good if the coins (I mean bitcoin) can be saved or hold throughout someone's entirely life and let his children still inherit it because bitcoin is an asset of value, its price will continue to increase undoubtedly.
For those who already have life savings in the bank, it will be best if this is done in bitcoin it will yield good value in the future. Their is no need dealing with fiat for those who have the oppression to hodl bitcoin for years. Bitcoin is considered as a good store of value hodling it foe a longtime. As for me it is a good thing to hodl bitcoin for your children to have access to it in the future, but as investor that have been able to hodl bitcoin for sometime, it will be nice to also spend a little fraction of your bitcoin investment not just only for your children in the future.