If something does not bother the Halacha why should it bother anyone? Children are not expected to keep middot chassidut. First a person should achieve, zehirut, zerizut and nekiut. Only then should he work on chassidut. The Gra said that Judaism is like a ladder. If you try to jump steps you will fall. Rav Kook said that this is because a person must always be balanced. Keeping an inappropriate (for one’s general spiritual level) chumra will lead to inappropriate kulot in other areas.
