Yes Bitcoin is very safe. And the online wallets are also very safe and that is pretty good. Of course you can be hacked, but that is with everything.
I hope later that more people will use Bitcoin and trust Bitcoin, that will be so good for the future.
Yeah, bitcoin is very safe now, and it will continue to hold its safety features in future too, its not that easy to hack or steal the bitcoins of people, as online wallets are very safe and easy to handle.