Beautiful little Shih tzu you have there and I am so glad that he now has a home where he will be loved and given the attention that he needs and desires.
I have 5 Shih tzu's at this time and have had this breed for over 20 years and in my opinion they are very easy to housebreak the most important thing is like someone else has said be consistent, we have a 5 year old male, a 3 year old female and 2 pups that are 6 months old and 2 weeks ago we got another little male who's was destined for the pound if we didn't take him he is 12 weeks old.
To me what has worked best in housebreaking them has been to take them outside first thing every morning when I get up, then take them out at least 2 or 3 times during the day more times if you can, and make sure you take them out just before you go to bed at night. Doing this i've never had any problems with mine. When I am going to be away from the house for any length of time I will also place a couple of the puppy pads down and they use those when they can't go outside. Now there is the occasional accident from one of the younger pups but thats to be expected.
I also agree wholeheartedly with your husband about NOT using a crate and training him that way. My little female I rescued from a bad situation where she was kept in a small kennel and wire cage and if you try to put her in a crate she goes absolutely crazy and starts crying and wets all over herself. She was NOT housebroken when we got her and she was a grown dog and within 2 months she was completely housebroken. And since you've said your little guy is somewhat timid I think with just a little patience, love and kindness he will amaze you at how easy he will be to housetrain. Also as someone else said they do tend to bond with one person more so than a whole family, not saying they will not be great friends and companions with other family members but they make no bones about who their number one person is. And they will do everything they possibly can to make sure their number one person is pleased and happy with them.
I have 5 Shih tzu's at this time and have had this breed for over 20 years and in my opinion they are very easy to housebreak the most important thing is like someone else has said be consistent, we have a 5 year old male, a 3 year old female and 2 pups that are 6 months old and 2 weeks ago we got another little male who's was destined for the pound if we didn't take him he is 12 weeks old.
To me what has worked best in housebreaking them has been to take them outside first thing every morning when I get up, then take them out at least 2 or 3 times during the day more times if you can, and make sure you take them out just before you go to bed at night. Doing this i've never had any problems with mine. When I am going to be away from the house for any length of time I will also place a couple of the puppy pads down and they use those when they can't go outside. Now there is the occasional accident from one of the younger pups but thats to be expected.
I also agree wholeheartedly with your husband about NOT using a crate and training him that way. My little female I rescued from a bad situation where she was kept in a small kennel and wire cage and if you try to put her in a crate she goes absolutely crazy and starts crying and wets all over herself. She was NOT housebroken when we got her and she was a grown dog and within 2 months she was completely housebroken. And since you've said your little guy is somewhat timid I think with just a little patience, love and kindness he will amaze you at how easy he will be to housetrain. Also as someone else said they do tend to bond with one person more so than a whole family, not saying they will not be great friends and companions with other family members but they make no bones about who their number one person is. And they will do everything they possibly can to make sure their number one person is pleased and happy with them.