In my music post, I mentioned that swearing in songs sticks out like a sore thumb. It's something that makes my ears immediately perk up.
I would say I am much more foul online than off. Swearing is apart of my digital vocabulary. I do it excessively online. I swear online without even thinking about it. Scaling it back wouldn't be a bad thing.
Offline, it's a different situation. Swearing isn't a sentence filler as much as it is for me online. By no means am I the Virgin Mary of bad words. I will drop a 'shit' if I stub my toe, for example.
Something that soured my view on swearing in real was my eavesdropping on some chick who was on her phone. I was walking into the shops, she was walking out. She was on the phone swearing like a sailor while pushing a child. I found it to be quite distasteful.
My family weren't hyper Christian goody two-shoes. Swearing is something my dad will do every two minutes. My mum does it less often, but it's still there. I've just always found it to be a bit weird. Especially in the case of people using it where it's not necessarily needed.
I'm not a big fan of swearing. I make an effort not to do it in my daily life, like you I'm more apt to swear online.
People who swear in front of kids, their own or otherwise, are low class individuals. It's a very trashy thing to do.
I was appalled recently by a co-worker swearing in front of her child. I don't know this person well, but I had to speak to her about something work related. I visit her office and she has her daughter there, about 12 I'd say. She starts using the F-bomb in conversation with me. First of all, I don't know this lady much, so I found it very unprofessional, and in front of her daughter no less, wow. I won't swear in front of children, my own or otherwise, even if the parent is swearing.