There's still majority people won't believe in bitcoin or they don't know the usefulness of it.
I second that, and I think it's cause of the propaganda and erroneous information the media spreads about Bitcoin, most of this anti-Bitcoin news are sponsored by the government in a bid to discourage people from using Bitcoin so they don't get control of their funds, as we all know the government would stop at nothing to make sure people use their CBDC's instead of Bitcoin, and that's cause they can control their central bank digital currencies, but they have no control whatsoever over Bitcoin.
I think it’s safe and secure to keep my money in my wallet even when I am not using it.
Yes it is, so long as it's a non-custodial wallet, if you use a custodial wallet to store your coins, then you're making a big mistake cause you're not the one with the keys to your funds, and by extension the funds isn't yours, the exchange/third party service can be hacked and you'll lose your funds, so always do your research before choosing a particular wallet, and never forget the rule of thumb that says you should never share your seed phrase with any other person.