saving money in banks or investing it online depends upon you. if you know bitcoin, and you have trust on it, then invest it online, if you trust your bank then save it there. the thing is, your money should roll and never get stagnant, coz when it is not moving, there is a big chance in the future that your money's value would depreciate due to increase in prices.
Yeah inflation would play a big role in future as we all know that the inflation rate is going higher and higher day by day, so invest your money in something which can give you higher returns and can also survive the inflation, bitcoin is volatile and can reach to moon in the coming years so investing in bitcoin at a moment is a great idea.