Of course we do :-).
(My youngest even kisses me on the but, lol
: a little 3/4yo having a hugging and kissing mood, 'attacking' me with his strong love-filled pressure kisses and hugs wherever he can, picture child clinging to mom busy in kitchen and kissing her behind, loooool. )
For me, as a mom, soft kisses on the lips are the most natural expression of mother-child love (and vice versa :-), those are just the most wonderful love-filled kisses and I wouldn't want to have missed these, ever! When I get one of my youngest, I name it the 'sweetest kiss in the world'.
So yes me and my children do lip kisses.
But ONLY mother-child, or little siblings among one another, in our case.
I may personally also kiss a very good friend on the lips (and only rarely that happened), mostly just on the cheek with a big hug, but when it happens this also feels just natural and spontaneous :-).
I found out other people do not find lip-kisses that naturally: my dh did not grow up with lip kisses at all, in fact with not much kisses at all (cultural thing) and so he is not comfortable with it at all and was not comfortable upon seeing me do this with our children. We had a 'discussion' folloeing a situation where our toddler would be expected to 'kiss goodbye' a friend (adult) and then mistakenly kissed that person on the lips, one blamed for teaching to lip-kiss, the other for expecting child to kiss non-parent adult/stranger(to the child, and also to me).
Anyway, now both children are old and 'experienced' enough to know it's not to be done and they wouldn't accept any either
So between me and my children it is very much our own thing and a cultural thing, and it's so normal and natural and lovely to us. But as a compromise towards my dh, we more or less limit it to the setting of our house since we also live in a culture where this is not much practised either. Also, my dh does not wish to be kissed on the lips by his children either, for him it does not feel natural nor 'right', so they use cheecks among themselves, and that's fine by me :-). The children now get these preferences/kissing 'rules' totally, and that's cool.