Sometimes, I do weekly shop in a well-known supermarket chain website. And we get airline tickets and book hotels on line when we travel. It’s cheaper, and equally sure, or not sure, I think. If I have to get something on line necessarily, I have no problem with it. Of course, I’ll never buy or give my credit card number on doubtful websites. But I have the same behaviour on physical shops. More times than I like to remember, a salesman have cheated me and I have done a bad purchase.
All malls or big supermarket chains have a shop on line. The most famous is Amazon. But you can browse wherever you want, if you have so money.