That’s part of why Tinder doesn’t have much info on the profile - most people using it are looking for a hook up, not a long term relationship. You don’t go looking for serious dates or a long term relationship based on a picture and three sentences (500 word limit I think.)
I am on a team that travels within the US and to other countries. Most of the teammates are 20 something guys with a few women mixed in and since I’m not their parent, they’re very open with me - maybe a little too open. Without exception, every single one of them uses Tinder and they use it for hook ups, not long term dating. This has been teh case in every place we’ve traveled, so it doesn’t appear to be regional. The team had a good laugh when they first showed me Tinder and I asked how you’d know if this is someone you’d want to date based on a picture and a few sentences… they said it’s “not for dating!”
If your son wants a long term relationship he should go to sites with other people looking for the same.