Everyone has different circumstances i agree with that.
But I have several workmates who still rent their housing and they are in their 40's and one in his 50's
I got talking about this to one of them during lunch break who told me him and his wife still rent as they preferred to go on holidays.
I often wonder what went wrong ..isnt first priority to pay off a house rather than go overseas?
Doesn't sound like anything has gone wrong for your friends, you are being judgmental, and they obviously have different priorities to you.