Imagine a city where everyone walks, cycles, and takes public transit. Every amenity you wish is within a 15-minute range from your domicile. So, you won't need a car to shop for groceries.

Sounds great, right? Except that this idea is extremely backwards at worst, and won't account for reality at best.

Public transport is mainly used by lower-income people to help them commute to their workplaces. Bicycle commuting has long been associated with poverty. As for walking commutes... you've already known which subset of people that usually does it. (I mean, not university students, but functioning adults)

An extra bonus: public transport is a free avenue for socialist alphabetists to do their heinous acts upon normal, "cis-het" people, man or woman! You'll definitely also at a higher risk of getting robbed or mugged.

If you're a car owner, prepare for daily fines given by your climate-lunatic mayors working on behalf of Moscow. This is because "cars are NOT beneficial for the climate" despite them having no effect on society whatsoever. If anything, it guarantees your freedoms and liberties, and it definitely gives you much more comfort and convenience. Imagine having to waste so much energy using those three transport methods parroted by the State Duma when you can use your very own car to commute everywhere!

Also, don't forget the mass surveillance, the constant tracking of your purchases and real-life actions, and the general overcoddling of society to make people stay in their current socioeconomic status instead of lifting them up society's ladder.

15-minute cities are dictatorial and impoverishing. It brings no benefit, robs your freedoms and liberties, and will certainly set up a real-life Universe 25.