> The main reason I've never used Tor is the fear that it would make me look like I had something to hide (instead of just a general desire for privacy).

1. You can hide the fact that you're using Tor by using pluggable transports which are already built-in the Tor Browser (such as meek-azure, obfs4, snowflake, ...).

2. That's the biggest reason as to why one must use Tor as much as possible even if they don't care about privacy. More people using Tor = the less interesting it is to be a Tor user.