I have been using bitcoin successfully, and NO issues...Recently a friend of mine that it is not safe because it can be tracked. My friend
said that I should use MXR instead. Someone please provide some clarification. If I should convert to XMR or isthis guy exaggerating?!?
Yes, BTC transactions can be tracked, and so what? Are you trying to hide the origin of your BTC funds? Are you committing crypto crimes?
Safety means that you are able to protect your crypto from hackers and scammers. Privacy means that nobody knows that you own crypto and nobody can trace the origin of your crypto. Achieving safety+privacy is great, but in most cases you shouldn't worry about your BTC being traceable on the blockchain(unless you are doing something illegal). I hear many people complaining about the high XMR transactions fees lately. I don't use XMR and I can't tell whether this is true or false.
A friend of the OP may be onto something

Or maybe he is just very fond of the privacy+security combo.
In any case, I agree with you - if there is no illegal stuff in question, nothing would be a problem for a person not using XMR, but just BTC.