You can pull up roots and move on almost anytime. If you own, you have responsibilities. You have to make the mortgage payment, pay the property taxes and fire insurance when due, and maintain your property with pride for your neighborhood. This might mean increased expenses that weren't in your plans. It is hard to say.
Rents continue to rise.
Your monthly mortgage payments may seem higher in the beginning, but remember that your mortgage interest and property taxes are tax deductible. In the final analysis, your ownership expense might be lower than your rental expense. Certainly, when paying rent, you end up with nothing of your own, no equity and no tax deductions. On the other hand, owning your own home can be the ultimate value if you are ready to settle down. You will have a responsibility but also a sense of security.