Vuejs pass vee-validate to custom checkbox input

I can not make custom checkbox component with vee-validate support. I'm newbie in Vue. In my app checkbox must be required. But it doesn't work. I read a lot of articles about vee-validate and custom inputs, but all examples based on simple custom text inputs.

Below my code at this moment.

Parent component:

    <!-- Custom text input. Vee-validate works nice. -->
    <input-text
        name="email"
        placeholder="Please, enter email"
        label="Email"
        :required="true"
        :type="'email'"
        :value.sync="shareholder.fields.email"
        v-validate.initial="'required|email'"
        data-vv-delay="500"
        :className="{'error': isShowError('email')}"
        :disabled="isDisabled"
    />

    <!-- Custom checkbox input. Vee-validate doesn't work. -->
    <checkbox2
        name="consent"
        v-if="consent"
        class="consent"
        :required="true"
        :disabled="isDisabled"
        :className="{'error': errors.first('consent')}"
        :error="errors.first('consent')"
        v-model="consentStatus"
        v-validate.initial="'required'"
    >
        <br><a :href="consent.link" target="_blank"></a>
    </checkbox2>
    

File check-box.vue:

<template>
    <div class="checkbox"
         :class="{ active: !!value }"
    >
        <label class="control">
            <input
                @change="handleChange"
                type="checkbox"
                :name="name"
                :checked="value"
            />
            <span class="icon-checkbox"></span>
        </label>

        <div class="label">
            <slot />
        </div>
    </div>
</template>

<script src="./check-box.js"></script>
<style lang="stylus" src="./check-box.styl" scoped></style>

File check-box.js:

export default {
    name: 'checkbox2',
    inject: [ '$validator', ],
    // In one of articles I read I must bind event and value
    // with check box like below. But it seems it doesn't work too.
    model: {
        event: 'input',
        value: 'checked',
    },
    props: {
        value: {
            type: Boolean,
            default: false,
        },
        error: {
            type: String,
        },
        name: String,
        disabled: Boolean,
        className: Object,
        required: Boolean,
    },
    data: function() {
        return {
            checked: false,
        }
    },
    methods: {
        handleChange() {
            if (!this.disabled) {
                this.checked = !this.value
                 // If I emit 'change' instead of 'input',
                 // checkbox component works wrong.
                this.$emit('input', this.checked)
            }
        },
    },
    created() {
        this.checked = this.value
        this.$validator = this.$parent.$validator
    },
}