I don't take my dogs everywhere I go, even though I like them all very much. Children are handled the same way and are left with a babysitter when the adults want to go out alone. That does not mean that the little ones are less loved. The same goes with all my bikes-Brompton & the others. I do leave my bikes home on occasion when having them around is not convenient or simply in the way of the planned non-bicycle activities participation by myself.

I am sure many other Brompton owners follow suit.