Crystal in now 17 months old and we live in a 4th storey Penthouse with just the beach available locally for walks. She has never designated either # 1's or 2's to the great outside. We have good pads and laminate floors, so there's no problem for us in this arrangement. Her solid offerings are particularly punctual in frequency and easy to flush away. She is however choosy about the brand and size of pad, so being obliging we coalesce with her preferences.
It would take maybe ten minutes to reach the outer world via the lift etc. To then have to collect the produce in a plastic bag, bring it back indoors, de-bag and flush it away seems rather inefficient.
There's also a hyper active Dog Warden, who loves issuing $80 fines for Dogs being 'on the beach' from May to October.
Within the tenets of our position,
(with age related physical drawbacks to boot) all participants in this arrangement seem to benefit. We use about three 60 x 40cm pads a day, not bad (no poo bags to buy) and she's worth it.