It's true that bitcoin is a big coin that is good for investment even though the market is now red but the movement of bitcoin has looked in a good direction but I want to tell you to invest not only bitcoin but also potential coins such as ethereum coins and BNB coins.
How did you get 1k activity on the forum without knowing the answer to your question?
BNB is a completely centralized coin that depends on binance. Bitcoin is the opposite, a decentralized coin that depends on supply and demand. You have a really wide range of coins you want to buy for someone who doesn't know if getting bitcoin is a good idea.
IMO if you're into cryptocurrencies and feel like getting one could be a good idea, you should buy bitcoin first. Get bitcoin and then sleep on it for a few nights. Don't get too excited before buying, don't get too much. Dip your toe, wait a bit and decide if that's for you.