It's for certain that most users do not really ensure that they are 100% private and their transactions untraceable. For one, many of us have actually undergone KYC at one point. We also reuse addresses, even post them publicly. Also, how many of us are actually making sure our computer's IP address is hidden? How many of us are actually using different wallets for different transactions and delete them right after? How many of us are actually running our own nodes to improve our privacy? How many of us are mixing our Bitcoin before we send them to somebody else?

I'm sure only very few.