And it is also very good to use and easy as well. But everyone have their own choice so I respect that.
I agree with you that using an online wallet has some advantages like it is accessible everywhere. but not all online wallets are the same, one should choose a wallet that gives access to his private keys so he will have the full control on his coins. but wallets like coinbase and xapo, I do not see any difference between them and PayPal
for online wallet is very good indeed very flexible also different from a desktop wallet. you can use on your device only