Many people rush to invest in Bitcoin immediately they have the information of Bitcoin having coming to manifest but they don't know that If halving May fail and also may not fail
What do you mean by the halving may or may not fail. BTC halving is part of the BTC protocol and it must happen after every 210,000 mined blocks until all BTC's have been mined. The part where people want to make so much money after the halving is not a case of it failing or not, it is simply that people expect the price to immediately pump once the supply of new coins has been halved, and it always does not go in the way they expected.