You think your boyfriend is immature as he still plays with toys. Now you did not mention what kinds of toys, as some adults play with toys too. However you must be know better if he is immature or not.
If he has thought of getting married to you, it means he is at least committed to you and has a long term future planning with you. If you really like him and love him then I would say just be patient and give him some time. Make him realize his responsibilities, probably he does not realize them and would start doing so if you say so.
Boys are always immature; once they get a sense of responsibility they become mature. It is the girl in their life who needs to push him towards making his future.
He has not asked you to marry instantly right, so why are you planning to leave him and getting scared. There is no need to panic, as this shows at least he loves you and is not like other guys who do not commit. You can really change his perception about life if you love him. However if you do not love him for what he is, then I would suggest you to leave him. It would be better for you as well as him.
If he has thought of getting married to you, it means he is at least committed to you and has a long term future planning with you. If you really like him and love him then I would say just be patient and give him some time. Make him realize his responsibilities, probably he does not realize them and would start doing so if you say so.
Boys are always immature; once they get a sense of responsibility they become mature. It is the girl in their life who needs to push him towards making his future.
He has not asked you to marry instantly right, so why are you planning to leave him and getting scared. There is no need to panic, as this shows at least he loves you and is not like other guys who do not commit. You can really change his perception about life if you love him. However if you do not love him for what he is, then I would suggest you to leave him. It would be better for you as well as him.