There are many differences between the live game and online, so the skills are not identical.
1/2 is the lowest level of live poker. Even though there is a lot more money on the table, generally the skill level is comparable to the lowest level online games.
This is again just random shit because I don’t play live, however this is something I used to wonder a lot. So solely following internet and hand analysis the sharks at live tables start around 25NL, all the way up to 100NL. Fish are at 2NL level, randoms ?5NL to 10NL?
You can’t compare directly though, because the skill set live is way different than online. Beanfacekilla for example can restrict villain’s range by just looking how people put the money to the pot or how they say things that is something online player never can do.