I have been on Lemmy for a couple of years and I am very happy about the influx.
I think Lemmy (and kbin) have a lot of potential and just need more attention from users, mods, developers and other organizations;
- There are a lot of private forums and comment sections for News/review/blog websites. Theoretically they could have comments on articles federated and made available on Lemmy/Mastodon.
- The markdown format seems somehow better than reddit and we are starting to see really high quality posts like this one
- hopefully some more integration with mastodon happens so that lemmy users could comment on someone's mastodon post or something similar.
If you are doing fine without one and feel the way you describe then there is probably no point paying for lessons, insurance and a car.
Sometimes a drivers license can be good career wise though so it can be good to have in the back pocket.