Is a person to be blamed in Islam if he dislikes others using his belongings, or if he is repulsed by children touching his things?

Lending is desirable, and it may become obligatory if the borrower is in dire need or if the borrowed item is inexpensive and customarily lent, such as an axe or a bucket. Allah Almighty censured those who withheld small acts of kindness (Al-Ma'un) in the Qur'an. For lending to be obligatory, it is stipulated that the lender should not be in need of the item himself, and that he should not be harmed by lending it. However, there is no blame in refusing to lend expensive items or those whose damage is feared. One should deal gently with children, as their bodies and clothes are pure until their impurity is ascertained, and the Prophet, peace and blessings be upon him, was gentle with them.