Yeah why not if law is not for you? Better than wasting the next 4 years of your life getting a specialised degree and taking the bar while full well knowning that you don't intend to be a lawyer.

Not all law firms are the same though - try interning at some of the smaller law firms to see if they suit you.

It is also not too late to pull up to a 2:1 and get into a Big 4 if that is what you want (but it doesn't sound like it is).

As you grow older you realise you don't really have to answer to anyone except yourself (and God if you are religious). Law students/lawyers are a gossipy bunch but see it as just that - gossip by small-minded people with nothing better to do. I am happier the less I interact with my "learned friends" who aren't actually friends I can go to when I am in a pinch