nothing is guaranteed in this life so I disagree with you when you only trading has no guarantee, because even bitcoin investment has no guarantee too, but it is more profitable and less risky than trading, trading is Very risky and it's not really that profitable compared to one long term holding.
Yeah nothing is guaranteed in this life but buying Bitcoin for a long term it’s more profitable imagine investing for like 10 to 15years on Bitcoin I believe your increase is a guarantee by now , that is why we urge people to indulge in investing rather than trading , their is a big risk and lose in trading, trading has no guarantee. New investor should really source for good information and direction so they won’t make mistakes and they should channel their mindset on buying instead of trading as to avoid risk and not making any profit.
Everything posses risk even Bitcoin and there's actually nothing safe investment that we can call, but if we do the right approach like we don't let ourselves get bothered by FUD's or short term hypes then provably that we can avoid getting FOMO then lose our investment.
10 to 15 years is somehow a good time and for sure that we could see some good changes already with that on Bitcoin especially that Bitcoin shows promising movement ever since before.
What we need to do is to be consistent and continue to believe that everything will be fine and there's good things come to us by having good patience for investing on Bitcoin. We are just in early phase on Bitcoin adoption so for sure there would be more wider acceptance will happen and I always believe that holders or early adopters will gain from this especially that we all know there's limited number of Bitcoin exist.