In cities it is very common for lower level of condo towers to have shops and things.

In cities, it is very common for everywhere except for the actual downtown core to not be condo towers at all in the first place, and instead be mostly single-family homes.

Yes, in cities-proper. Not just whole metro areas including suburbs and exurbs; even the core cities themselves are mostly single-family.

For example, here's the City of Atlanta (not Metro Atlanta; just the core city in the middle of the metro area):

The entire light-yellow area is only single-family houses. (Note: using light yellow for single-family zoning is a common convention among city planners, so all the maps below are going to use that color scheme too.)

Here's Los Angeles:

Here's Austin, TX:

I could go on all day. There are only a tiny handful of cities in the United States that aren't like this.