Firstly, my opion is that there should be a limit how much times we go into space, because if we keep going up to space we might run out of recourses for other things like helping humans animals or climate change.
Also I think we as the world could go bankrupt and the government doesn't get paid that much money at all they would be under pressure massively. Before we look for more planets that we could live on I think that our focous on our own planet and save it from,any things that impact our lives by a huge persentage!
This can also affect our climate from all of the pollution when the rockets launch this climate could also spread across the atmospher. With this across the atmosphere people may start to get unwell and ill this would be terrible for our planet then we would have to move planets, but this may not be completed because of the terrible atmosphere.
Personally, I think that all astronauts should go up to space once and no more, because it gives every astronaut gets their one and only chance and if there could be more astronauts on board it would save all the pollution and fuel.
Going up to space uses tones of recourses like fuel carbone-fibre and many more expensive materials these are also very rare and we do not have an ifanant amount of anything these things don't just grow out of trees.
But, if we manage to avoid this happening and we stop going in to space as much as we are, but I still think we should go up to space but not this much.