[ARCHIVED] Infant/Toddlers needs Declined While playing another lot

On Xbox Series X with all packs, I had a Sim restocking her shopping mall yesterday which took quite a while with about 5 little shops to restock, around 48hrs of Sims time. I left her family at home together, Father, 2 child age Sims, their Dog and a toddler. She fed Rico (toddler) before she left and all needs were maxed. She'd only been at the retail lot for a few hours, all their needs were fine except Rico was starving again and in the red. I set all the other Sims to socialise with him but that made no difference. I had to travel back to the lot to feed him, put him to bed and then return to the retail lot.

Next morning Rico was at daycare as the family had gone to work and school. So I watched his needs again and the same thing happened. I had to just bring him to the retail lot to try and fix his needs, I gave him a toy to occupy him to watch him there instead. 

It's really affecting family gameplay and the Needs of Toddlers and Infants just do not work in the same way as other age groups. I found myself wishing I could give Rico a Moodlet Solver because his mother was using those to keep on working.

In contrast I had another Sim family of Father, Daughter, Aunt, Horse, Cat and Dog all stay at home while the mother restocked her large gift shop. It took around 72 Sim hours and everyone left at home was absolutely fine. I checked a different household with just a Horse, adult Dog and Puppy and they were all fine for the duration (it was a busy retail lot check day). So I think I'm going to sell any Retail Lot that belongs to any household with an Infant or Toddler as a result, because it was just such a massive hassle.