Yes, the bitcoin is a very safe method for payments, plus its also fast.
The only thing you need is a secured wallet, use blockchain or something.
For online shop payment in my country, you have to wait at least 1 confirmation to confirm your order with the retailer. It is slower than credit cards.
you're right, bitcoin has been very reliable since it was first launched, this time very much invesor entrusting their wealth in the form of bitcoin. but although safe but not all online stores using bitcoin, it was not big enough for bitcoin