I agree there are benefits to renting, but to really benefit much the landlord can’t be making incredible profits (e.g. it’s not worthwhile to rent long-term if your landlord charges you a 50-100% premium on the landlord’s cost of ownership.)
Before buying my first house in 2021, I was paying $2k / month in rent in a 2 family house my landlord bought 2 years prior for $350k. There was another person paying an additional $1k/month in the same house for a total of $3k/mo of total rent for a $350k house the landlord purchased through a LLC the year prior.
When I ended up buying a house, the monthly mortgage payments were about the same as rent except the house is 2x larger with 5x more property (on the same street as the apartment I was renting).
In other words, for mobility to really be worth the cost of renting, you really gotta be taking advantage of that benefit and moving around a lot. If you’re renting a house like I was for a long period of time, it makes absolutely no sense.
Unfortunately, I think most renters do so out of necessity (not able to afford a $75k down payment, for example).