Since the year started with a good results by moving from $20k to $24k this year
As said, you've started with inaccuracies. Even more, the tiny 4k movement means nothing in the grand scheme of things. Just look at the whole price chart.
because, the price of BTC will surely reach $80k before the end of this year 2023.
Are you sure investors will experience $80 this year?
So you fist say that people should take advantage of the low price because it'll rise to 80k... then kinda ask us if it's (surely) so?
No, I'm not sure of any price level for Bitcoin. And, to go on the actual speculation area, I don't even expect 80k this year. I would be happy even with 50k. The 80k I expect for next year though. But again, what I expect and what will happen... those may be wildly different things.
So it's nice to tell people be careful and don't miss the train, but on the other hand make sure you remind them only invest what they afford to lose, else if tomorrow the price will go a tad lower, they'll already panic and sell.