Well, I can't comment on your specific situation, but I have to say that your parent's approval or disapproval does matter if you are living under the same roof as them. When you are on your own and are financially independent, it doesn't matter what they say, but as long as you live with them, no matter how old or young you are, you should respect and obey them.
As for the whole family approval thing, I think that I would never do salsa if it offended my wife or children. Actually, the reason I wanted to learn salsa in the first place was because I was thinking of my future wife, and I wanted to be able to dance with her. I know lots of men who for whatever reason don't dance with their wives, and I felt sorry for them, so that is why I wanted to learn salsa, so I know how to dance when I finally find my special girl...
Some people talk about how sensualous (if that is a word) salsa is, but to tell you the truth, it doesn't mean anything if you are not in love. I see every single girl I dance with as just a practice until I find my ultimate love who I will dance with. No matter how beautiful or amazing the girl is, I see her as nothing more than an opportunity to get experience for the day when I find the girl I truly love.....
But for a non-dancer, that is actually as believable as a one liner like :
"I think we should see other people"
Every body knows what it really means is " ha ha, I allready am"
It is sometimes hard for a non dancer to believe that you are dancing for the shear joy of the dance, and of the moment you share with someone, and not just to go find new partners, because to them the only experience they had with dance is frat parties and drunk discos…
It is even harder when you say that you are dancing salsa, because of all the false ideas people have (movies are no stranger to that).
For example, it has happened to me more then once to go to a dancing place with friends or co-workers and have them come to me after a dance and tell me :
“Was that your girl friend? Boy you looked so intimate and so sensual together! Got to be at least someone you are sleeping with, right?”
So as hard as you love dancing, and as inocent as you want it to be, it will never quite be as clear to a non-dancer.
(by the by, how anyone would think that heat comes between two people that are sleeping together more then between two people that wish they could sleep together is beyond me…)