Venusians, Martians, and Saturnians, at least the humans living on, and under, all 3 planets don't want Earth people in space much like you wouldn't want someone straight out of Compton living next door to you.
Or: Human Deep Space Programme, and Mars Base Cancelled (
imagined headline on 'Venus' (Gas giant)).
"Well, fellow 'Venusians', Would you want an Open-Sewer Plumbed right through your Living Room?"