It’s not FOMO, it’s financial sanity. If I pay rent for another thirty years, I have nothing to show for it except a period of non-homelessness and years more of rent to come. If I pay a mortgage for the same amount for thirty years, I’m rewarded with a house for the rest of my life and no more mortgage - and I can resell the house when it no longer suits my needs, or give it to a younger family member