It seems like there may be some typos or miscommunication in your question. However, I understand that you're discussing the importance of supporting toddlers as they learn new skills and develop confidence, while avoiding overly critical feedback that could lead to self-doubt.
In terms of the psychosocial development theory proposed by Erik Erikson, this relates to the stage of "Initiative vs. Guilt," which typically occurs in preschool-aged children (around 3 to 6 years old). During this stage, children begin to assert control and power over their environment through directing play and other social interactions. When caregivers encourage exploration and learning without excessive criticism, it helps foster a sense of initiative and self-confidence.
If you're referring to a specific virtue, please clarify. However, generally, the virtue related to this stage is often seen as "courage" or "purpose," where children learn to take initiative and feel a sense of accomplishment.
Supporting toddlers with love and positive reinforcement is essential for their emotional and social development. It’s crucial for caregivers to provide guidance and support while allowing for mistakes and learning experiences, rather than fostering a sense of guilt that can arise from being overly critical.