What sort of clothes should women wear in daily life outside of Church. Any recommendations?
Is it appropriate to invoke my authority as husband to insist she wear skirts?
Ask other modestly-dressed women at church to give you a list of online shops to buy modest clothing. Again, help her and give her time.
And just how is he supposed to respond to the women's husbands when they ask why he's paying so much attention to how their wives dress?
Better he search on line himself or have his wife ask other women but she won't do that until she actually wants to change.
She may not appreciate him pointing out other women's outfits either.