As others mentioned before, by owning you control your own destiny. I've sold many homes where the new owners wanted the tenants out or raised their rent afterwards. Plus you have to get permission to do things and certain things just can't do like add an addition or garage if you want. Basically renting means being at the whim of the landlord. Worse ones I've done were the ones where I rented it to someone and then a year or two later the place was sold and then they got kicked out.
There's usually a calculator that allows you to factor whether you're better off renting or buying. Normally if you're going to say in an area for 7-10 years, you're better off buying than renting. If you move every 2-5 years, it's probably cheaper renting.
Also you should have some savings to handle repairs and unexpected emergencies. I've also seen people get foreclosed on or were forced into a short sale due to unanticipated problems in life. Usually those things revolved around death, divorce, disease, job loss etc. Those items are unplanned and without good savings, it's easy to lose the house when those happen.