I hate this analogy. Its more like you parked it in a very public space and said "free to use" and someone who had been to jail used it. There are all kinds of legitimate reasons to use TOR that aren't child porn, and acting like because it can be used to view child porn makes it truly horrible and hosting hardware to use it makes you part of the problem shows a misunderstanding of what its for.
Let me pose it to you this way. Do you use a VPN? Do you know someone who has used a VPN? Have you watched a YouTube video that was sponsored by a VPN? Do you remember the reasons to use a VPN? Those are all things Tor does well. Better even. And for free. Meanwhile, hosting VPN hardware comes with all the same "people could use it to host child porn" downsides as TOR exit nodes
In my personal life, I use Orbot all the time for things like keeping my Syncthing traffic secure and quickly anonymizing my traffic. I also host a relay because Iranian women and Ukrainian soldiers are currently using the Tor network for life and death circumstances.