If there are reasons I would like to discuss them.
Its easy to say that but actually hard to do especially if things will not go on our side and the value will decrease more due to unwanted market scenarios. But most of the time this statement will come out from people when there's good thing happened like this speculated event to come like halving. People usually hold their bitcoins for that reason so provably they would provably hold until next year for thinking that they can earn huge from its upper growth activity that could possibly happen in future.
Maybe other reason is they believe on bitcoins future but its hard to find those people hold for long term without any worry since most of people I meet is trading bitcoin for short term because they are afraid on its sudden market changes.