If you are buying at online shops, its better to use paypal, cause paypal is the most common in online shops, But if you want to grow your money use bitcoin,
yeah I think not only is often used by many people and is accepted by many shops and merchants. but paypal also provide very good protection for the user that the buyer and seller. so when you were deceived by the merchant you can do dispute it. and you can get a refund dude 