Tumpang thread, if I use 175/65/14 for rear and the front is185/60/14.
1)Will it be fine long term 3 years?
2)if I decide to change all into same size what are the benefits changing to bigger width but smaller profile from 175/65 to 185/60 Tyre? I.e less rolling resistance
3) Opposite question above (2)What is the bad thing changing from 175/65 to 185/60?

Thanks for the input 😊