Do you swear/cuss in front or around people you don't know?

My language is far from clean at the best of times but I am only comfortable saying the F word etc in front of people that I know. I have no problem with anyone swearing around me but I have noticed that people of my generation and younger seem to swear more loudly and openly in public and not care who hears them. I was just (literally 5 minutes ago, hence why I thought of this question) in the toilets/restroom at work and a couple of girls who I assume are customers were messing around when one loudly joked about how the other was a “fucking bitch”, there was a mother and child in there as well as myself and I couldn’t help feel that, although I wasn’t offended, it was unecessary.

Do you think “freedom of speach” is taking away our consideration for those around us when it comes to overly colourful language?