It's not often I disagree with @caitlinmoran. But in this case, some facts. In the UK, each tax payer pays about £1 per year to be a part of @esa's exploration programme. https://www.esa.int/Science_Exploration/Human_and_Robotic_Exploration/International_Space_Station/How_much_does_it_cost https://twitter.com/caitlinmoran/status/1326240712342560768

That (amongst loads more) enables UK based scientists to use the ISS for research that benefits humanity. It's particularly useful for research into how human bodies age, something we all hope to do one day
https://www.esa.int/Science_Exploration/Human_and_Robotic_Exploration/European_ISS_Business_Club/Benefits_of_human_spaceflight

The technology developed for human spaceflight forces engineers to think about things that keep humans alive in different ways. It has led to improvements in water recycling that helps conserve water all over the world, inc in developing countries. https://spinoff.nasa.gov/page/space-age-water-conservation-nasa

To put the cost of all human spaceflight activities into perspective against the costs of other things, this @xkcd comic is incredibly useful and informative https://imgs.xkcd.com/comics/money.png

As to the water, and the interest of space agencies in it, their roadmap looks to exploration, not colonisation and settlement. Their goals are scientific, technical and inspirational. https://www.globalspaceexploration.org/wordpress/ 

The fact that the only people on the moon have been white men is, absolutely, poor. But humans haven't been there since the 60s, and NASA didn't allow women to be astronauts back then, it's a reflection of the time. Agencies now work hard to recruit diverse, representative astros

And it is a given that the next crews to visit the moon and the lunar gateway will be a mixed. Not just gender, but also ethnicity and nationality. The efforts are global collaborations. @esa astronauts will go to the Moon. https://www.esa.int/ESA_Multimedia/Images/2020/10/ESA-NASA_Gateway_Memorandum_of_Understanding_signing

Then there's the inspiration factor. We live in a world where space underpins our everyday lives, from sat nav to weather, live events from around the world to paying for stuff electronically....

The world needs young people to be excited by science & technology, to become the inventors of tomorrow. Space, especially human spaceflight does that. When @astro_timpeake spent 6 months in space, his mission engaged 2 million+ young people across the UK https://www.gov.uk/government/publications/impact-assessment-principia-campaign

Space is vital to life as we know it, and the future of our planet, and a significant chunk of the data we need to monitor climate change can only be measured by spacecraft. https://www.gov.uk/government/news/uk-led-mission-to-improve-climate-change-forecasts-added-to-european-space-agency-programme

Space is not razzmatazz but quite the opposite. Space, all of it, is an important part of modern life on Earth.