This question is unnecessary question. people are discussing simply what ever they want. first of all this is never ever possible from you right ok tell me at least can you give us 1 BTC right now. No is your answer i know. People are simply dreaming here if they got 10BTC what they will do if this much easy BTC we will getting means why should we gamble right. We are doing gambling and other things because of this only right.

Yes selling them all could also be a good idea but if the price goes very high then that will make you regret that you sold early. So, I think it is better just to hold your bitcoins and wait for right time to sell then rather investing here and there

If your ultimate goal is to sell then I think you should wait for next couple of days, as you can sell at the time of halving when price  goes higher that will result in earning higher profits.

Cash out to fiat a few days before halving
and buy back in a week after halving
then i would invest 50% into altcoins
and keep the rest

Would you just do 1 dice throw with 5 btc on the line or would you do smaller bets?

If I answer for current situation about BTC markte means. I right away go for sell all those since the value is pretty high about 700$ So if i got 10 BTC i will get some bulk amount in my regional currency.

you will invest the money for whom. the the person who is giving you the money. or for your won self. for what purpose the is giving you the money can you expplain it.

if only detained to be kept, then the bitcoin will not be developed.

Pobably i will save it for some time to make a bit more money and than i am gonna exchange it into fiat to buy something usefull for my life and family as well.

I agree, if most people will just store it and wait for years to sell it then bitcoin will stop to circulate and will slowly die. Bitcoin was not created just for holding it. It is not a tree where you plant and wait for many years to reap its fruit.