Whereas, take the Church of Jesus Christ of Latter-day saints:
"Hi I'm interested in learning more"
Awesome! Here are some pamphlets, here's one of our scriptural texts, when can you meet with some of our missionaries to talk? Do you have any questions right now? Here's some useful articles, some great talks, there's also these YouTube channels, I know I know it's a lot of info but we'll cover the basics and then you can consume as little or as much as you want!
Similarly Catholicism has RCIA, Buddhism has some 'centers' where you can go like here in Indy the Indiana Buddhist Center, Islam you can drop by most masjids and people are super friendly and will answer questions or there are places like the Islamic Society of North America here in Indiana in Plainfield, some sects of Judaism are very open to investigators/conversion (although some make it next to impossible and actively try and drive you away), etc.
I suppose though, that probably makes Asatru in fact very similar to the peoples it claims to base its beliefs around. People in the ancient world weren't too terribly receptive to outsiders with the exception of trade.
I think most religions boil down to this, when applying enough reduction. Doesn't mean that they don't touch people and give them experiences in things that modern society is perhaps lacking in. I think those things can perhaps be difficult to comprehensively be described with words.