one-size-fits-all

adjective2

1. •
   Of a garment, designed to be worn with comfort by people with a wide range of sizes.
2. •
   (figurative) Suitable for a wide range of tastes, opinions, situations, etc.

   • What about overcrowding? […] DfT admits that there is no one-size-fits-all approach and that individual operators are best placed to implement locally based safety plans. — 2020