Keeping up with the Joneses
"Keeping up with the Joneses" is an idiom in many parts of the English-speaking world referring to the comparison of oneself to one's neighbor, where the neighbor serves as a benchmark for social class or the accumulation of material goods. Failure to "keep up with the Joneses" is perceived as a demonstration of socio-economic or cultural inferiority.
Source: Wikipedia — Keeping up with the Joneses (CC BY-SA 4.0)