We analyze the joint decision of participating in the labor force and using paid childcare made by mothers in two-parent households with pre-school age children in the Netherlands. Both the choice to use paid childcare and the number of hours taken up are analyzed. The data, collected in 2004, contains information on economic factors and on attitudes and opinions on childcare and labor. While acknowledging potential endogenous selection effects and bidirectional causality implying problems of endogeneity with the attitudes and opinions, our results show that, in addition to economic factors, attitudes and opinions are important when explaining the decision to participate in the labor force and to use paid childcare services, but they are less important when it comes to the decision on the number of hours childcare is taken up.