Infants can't use playmat

That's a good thing :D

Moving this to gameplay but do let me know if you have further issues.

I'm starting to think that this was an unfortunate glitch... in my save I've had multiple babies in multiple families, and have not seen it anymore.... 

still trying to figure that out

You need to make one bug report per issue. 

Please check this for more info: General Information About The Bug Reports Forum | EA Forums - 4965007 

Are you still having issues with the playmat or was this solved ?

can the title be changed again? It seems I found another issue with babies (infants)... in the current family I have, the infant has a very hard time falling asleep for some reason, even when you tell her to try to fall asleep... so I would like to change this topic to something like "still infant issues"

I did the "clean folder approach" last night, I'll let you know what I find... 

There's a lot of cache files and other stuff that can influence the game.

A clean folder makes sure there's no left overs that can contribute to the issue.

It's also important to test if it happens on a new save game.

I personally can't duplicate this.

Just now I removed all mods/CC, but that does not fix the issue... and to be honest I fail to see how the "clean folder approach" would help... 

Please try the clean folder approach described here: 📓[GUIDE] Clean User Folder Approach | EA Forums - 12690428 

I haven't removed the mods yet, but I will answer your second question for now: when I select the baby and then click on the playmat, I do not have any options whatsoever. When I select one of the parents, and then click on the play mat, I only have the option to "put it in inventory", and the other option (that I cannot remember now), but no option regarding putting the baby on there....