I'd not give them a miss that easily, Ake. Take a look around and see what is meant by "session".

My own usual understanding would be a tune dominated (if not entirely) event and one where you could be expected to know and play (with the ones you do know - you don't have to play everything) what you do in a way that fits with others and there may be no room for a beginner in that.

OTOH, the only thing I get to these days also calls itself a session and would take 2 or three guitars going, has more songs, tunes are more mixed, eg. English and a few Irish...

I know this drifts a fair way from your OP but best advice to anyone on that line is probably look around and see what might fit you.