I don't own a home (did once in the past) and no, I'm not bothered. It really doesn't matter.
I don't know where this drive to own a home comes from (Thatcher??), in other European countries (France for instance) the vast majority of ordinary people have long-term rents. However, they also have rent-capping and more protection than in the UK.
But it is still possible to get decent, protected rents in the UK....for instance, rural areas like Lincolnshire have landowners with cottages which you can rent, do up and even pass on to your children as long as you're a good tenant and pay up. There are also unusual rents eg. via the National trust or attached to the estates of big country houses.
As far as giving up the mortgage, you are right. Many people say they 'own' their own home but they don't, they mean they're mortgaged up to the age of 70. I had a couple of mortgaged properties when I was first married and never stopped worrying about them; not only paying all the interest but being responsible for damage (leaks, storms) and if I wanted to move, the whole selling/buying/fees thing which is a nightmare.
After my divorce I have rented some absolutely lovely places, far bigger and in more beautiful settings than I could ever have afforded to buy. They were easy to rent, the landlord did the repairs, when I wanted to move on, the whole process was merely a matter of giving notice.
Even better, if you want to go around the world in a boat, go for it. Not owning anything makes the whole thing easier to do. Life is about experience, not being saddled to a mortgage. If it doesn't work out, you come back and rent somewhere else. I have also gone abroad, done things and now I'm coming back. I'm also older and facing - in due course - a pension. I shall still rent. It will make downsizing easier when the time comes and perhaps one day, when I need the nursing home, that will be easy too.
Owning a home really isn't everything.