I will do both. We know, bitcoin have high risk. If you do saving money in the bank, you have low risk and for a long term. If all of your money invest to bitcoin, you dont have a backup for your financial. Bitcoin is fluctuative digital asset.I suggest you to save money in the bank, like 50%, and then invest your money into bitcoin, like 20-30%, and 20-30% for daily needs and etc.

I think investment is more profitable than just saving money in bank.  Investing money will give you more return than keeping money in bank account as its rate is increasing rapidly and more and more people are taking interests in bitcoin and this will help you earn. I will personally perfer investing rather than saving.

You can make more profittable through trading Bitcoin, I do not negate that. But, please do not forget you also get the risk through trading Bitcoin. Sometimes, it has chance makes your balance decrease and you will lose your money haha.

Investing in undervalued securities is the only long term profitable strategy superior to anything.  I do understand investment in some ICO if it is reasonable to expect future returns higher than the vale of the token today. What I don't understand is why people call it investing when they own bitcoin. It's pure speculation as it is not possible to gauge the value of it. You can see the price but not the value. So yes invest if you are able to tell the value and compare it with the price.
If you do not have the means to tell apart good investment from bad one you should definitely find someone with a good track record and sound reasoning. If reasons to buy make sense and the strategy is proven it should be ok.

Its better to invest money rather than just keep it in your locker coz if you invest properly your money can increase but you should know when to cash out with the profit and not be greedy.

people who do not have savings can not even think about securities or about investments. this is nonsense.

You cannot just choose one if you want to be successful in handling your money, you need to learn how to save first so you have a chance to be successful in investing. With saving you will learn discipline because you will need to minimize your spending and sacrifice some of your happiness in order to save the target amount and that is a big factor that could help you in investing as we need to have patience in investing especially in cryptocurrency.

I think if you have money more than your needs you should invest it rather than to put it in banks and sit for the interest.  You should invest it in properties,  real estate,  bitcoin,  or in investment strategy.  Because saving will not increase the amount you saved.  But investing it in bitcoins or somewhere else will benefit you.  As the amount you invest will increase with the due time.  In few years your saving might not help you but your investment on real estate,  bitcoin will definitely benefits you and your family.

For me it's better to invest because you're more secure when you put your savings in the bank and you can save money and that's what it's best to do to increase your money and you can still use it at the time you need to be just like unreliable accident or emergency.